Abstract: A foldable seat back includes a base, a back plate and a bracket. The base defines a positioning groove therein. The back plate is pivoted on the base, allowing the back plate to be positioned in at least one folded up state and a folded down state. The bracket has one end pivoted on a rear side of the back plate, and the other end releasably engaged in the positioning groove of the base to sustain the back plate in the folded up state.

Abstract: A foam product includes a foam core, an upper skin and a lower skin. The foam core has a top surface, a bottom surface, and a peripheral side surface. The upper skin covers both of the top surface and the peripheral side surface of the foam core, but extending not beyond the bottom surface of the foam core. And, the lower skin covers both of the bottom surface of the foam core and a peripheral end surface of the upper skin.

Abstract: A fin assembly includes a fin body and a fin holder. The fin holder has an elongated channel, a pair of opposing slots, a pair of front guiding grooves and a pair of rear guiding grooves. The pair of front guiding grooves are defined in the opposing sidewalls of a front section of the elongated channel at a horizontal level, and misaligned with a bottom of the elongated channel. The pair of rear guiding grooves are defined in the opposing sidewalls of a rear section of the elongated channel above the horizontal level, and are flush with the bottom of the elongated channel Besides, the fin holder defines in its rear wall a horizontal hole with a cross section large enough to cover a space between the pair of rear guiding grooves.

Abstract: A fin assembly includes a fin body and a fin holder. The fin holder has an elongated channel, a pair of opposing slots, a pair of front guiding grooves and a pair of rear guiding grooves. The pair of front guiding grooves are defined in the opposing sidewalls of a front section of the elongated channel at a horizontal level, and misaligned with a bottom of the elongated channel The pair of rear guiding grooves are defined in the opposing sidewalls of a rear section of the elongated channel above the horizontal level, and are flush with the bottom of the elongated channel Besides, the fin holder defines in its rear wall a horizontal hole with a cross section large enough to cover a space between the pair of rear guiding grooves.

Abstract: The present invention provides a massage roller which comprises a soft shell, a core member, a first blocking member and a second blocking member. The core member is substantially cylindrical and hollow and made of a rigid material. The soft shell is disposed around the core member and made of a flexible material. The first blocking member blocks a front end of the soft shell and has a first extension detachably secured to a front end of the core member. The second blocking member is secured to a rear end of the core member and blocks a rear end of the soft shell. The soft shell and the core member are configured to be axially displaceable relative to each other but not rotatable relative to each other.

Abstract: A foam product includes a foam core, a soft skin covering the foam core, and a base structure on which the foam core is disposed. The foam core of expanded beads has an outer surface on which some outermost beads of the expanded beads are exposed and bulging outward with different heights to form a bubbly texture. The foam skin has an inner surface attached to the outer surface of the foam core, and has at its inner surface a plurality of concave cavities each matedly surrounding a respective one of the bulging, outermost beads on the outer surface of the foam core.

Abstract: A foam product includes a foam core and a soft shell. The foam core includes a tightly packed cluster of expanded beads. Each of the expanded beads is made of a pre-expanded bead. The foam core defines in its top surface a recess. The recess has an inner wall on which some outermost beads of the expanded beads are exposed and protruded. The soft shell is disposed within the recess of the foam core and has an outer wall attached to the inner wall of the recess. In particular, the soft shell has at its outer wall a plurality of cavities sized and shaped to respectively receive the protruded, outermost beads in the recess of the foam core.

Abstract: A solution for treating a contact lens and a contact lens packaging system are provided. The solution includes about 0.01 to about 1.0 parts by weight (pbw) of a polymer having phosphorylcholine groups, about 0.005 to about 0.05 pbw of a hydrophilic molecule, about 0.01 to about 1.0 pbw of an inorganic salt, and about 100 pbw of water. A number-average molecular weight of the polymer is about 4,000 to about 1,000,000 daltons. The polymer has a structure of formula (I): wherein, in formula (I), m is a positive integer, n is zero or a positive integer, and R is C2-C12 alkyl group, or C2-C12 hydroxyalkyl group. When n is a positive integer, m/n is greater than 1. Moreover, a number-average molecular weight of the hydrophilic molecule is about 10,000 to about 5,000,000 daltons. The hydrophilic molecule is hyaluronic acid (HA) or hyaluronate salt.

Abstract: A watersport board includes a board body, two female fasteners, a baseplate, a fin adapter, a fin and two male fasteners. The board body defines a receptacle. The female fasteners are embedded in the board body. Each female fastener has a receiving hole. The baseplate is attached underneath the board body. The baseplate has a first bore and two second bores. The fin adapter has an adapter body and an extension laterally extending from the adapter body. The adapter body passes through the first bore of the baseplate and is engaged in the receptacle of the board body, and the adapter body has a cavity. The fin has a base portion received in the cavity of the adapter body. Each male fastener has one end connected to the extension of the fin adapter, and the other end passing through the second bore of the baseplate and being engaged in the receiving hole of the female fastener.

Abstract: A watertight bag includes a bag body, a closure retainer and a fastener. The bag body has an opening facing upward at a top edge thereof. The top edge of the bag body is to be folded over to turn the opening upside-down. The closure retainer is disposed at the top edge of the bag body and includes first and second strip members that are respectively disposed at opposite sides of the bag body for sealing the opening of the bag body. The fastener is disposed on the bag body for fastening the closure retainer in position when the top edge of the bag body with the closure retainer thereon is folded over and turn the opening of the bag body upside-down.

Abstract: A paddle is disclose, the paddle comprises a blade, an intensified structure and a handle. The blade comprises a body and a tubular section extending from the body. The body is provided with a reception hollow communicated with the interior of the tubular section. The intensified structure comprises a joint section and an intensified section, where one end of the joint section engages fixedly in the inside of the tubular section of the blade. The handle is joined to the other end of the joint section. The paddle of this invention exploits the intensified structure to heighten the structural strength of the blade, which substantially decreases the possibility of breakage of the blade due to the propelling force.

Abstract: The present invention provides a massage roller which comprises a soft shell, a core member, a first blocking member and a second blocking member. The core member is substantially cylindrical and hollow and made of a rigid material. The soft shell is disposed around the core member and made of a flexible material. The first blocking member blocks a front end of the soft shell and has a first extension detachably secured to a front end of the core member. The second blocking member is secured to a rear end of the core member and blocks a rear end of the soft shell. The soft shell and the core member are configured to be axially displaceable relative to each other but not rotatable relative to each other.

Abstract: A waterproof bag includes a bag body, a sealing clip structure and a fastener. The bag body has an opening facing upward at a top edge thereof The top edge of the bag body is to be folded over to turn the opening upside-down. The sealing clip structure is disposed at the top edge of the bag body and includes first and second strip members that are respectively disposed at opposite sides of the bag body for sealing the opening of the bag body. The fastener is disposed on the bag body for fastening the sealing clip structure once the top edge of the bag body with the sealing clip structure thereon is folded over and turn the opening of the bag body upside-down.

Abstract: A foam saddle is disclosed, where the foam saddle comprises a first casing, a second casing, a foam body and an intensified structure. The second casing is capped on the first casing. The foam body is formed in a cavity of the first casing and is bound to the first casing and the second casing. The intensified structure is embedded in the foam body. By means of the above structure, the first casing of the foam saddle of this invention and the foam body possess great bonding in between, and the foam body and the intensified structure possess great bonding in between too.

Abstract: A fin assembly includes a fin, a mounting base and a socket base. The mounting base is provided for permanent inclusion within a watercraft. The mounting base defines a cavity that is adapted for receiving the socket base. The socket base further includes a cavity adapted for receiving the fin. The socket base is further adapted for receiving an accessory.

Abstract: A foam saddle is disclosed, where the foam saddle comprises a first casing, a second casing, a foam body and an intensified structure. The second casing is capped on the first casing. The foam body is formed in a cavity of the first casing and is bound to the first casing and the second casing. The intensified structure is embedded in the foam body. By means of the above structure, the first casing of the foam saddle of this invention and the foam body possess great bonding in between, and the foam body and the intensified structure possess great bonding in between too.

Abstract: A fin assembly includes a fin, a mounting base and a socket base. The mounting base is provided for permanent inclusion within a watercraft. The mounting base defines a cavity that is adapted for receiving the socket base. The socket base further includes a cavity adapted for receiving the fin. The socket base is further adapted for receiving an accessory.

Abstract: An expanded laminate material includes a plastic sheet and two expanded layers. The plastic sheet has upper and lower surfaces and a thickness of between about 0.05 and 1 mm. The first expanded layer has upper and lower surfaces, a foam density of between about 1.2 and 8 pcf and a thickness of between about 1 and 8 mm. The lower surface of the first expanded layer is directly bonded to the upper surface of the plastic sheet. The a second expanded layer has upper and lower surfaces, a foam density of between about 1.2 and 8 pcf and a thickness of between about 1 and 8 mm. The upper surface of the second expanded layer is directly bonded to the lower surface of the plastic sheet. The first and second expanded layers comprise a material selected from the group consisting of expanded polyethylene and expanded polypropylene.

Abstract: An expanded laminate includes a first plastic sheet, a first expanded sheet and a second expanded sheet. The first plastic sheet has a top surface and a bottom surface. The top surface of the first plastic sheet is bonded to a bottom surface of the first expanded sheet. The bottom surface of the first plastic sheet is bonded to a top surface of the second expanded sheet.

Abstract: A sports mat includes a foam sheet, an adhesive bonding film, a patterned layer and a skid proof layer. The foam sheet is made of polyethylene foam. The adhesive bonding film applied to a top surface of the foam sheet. The patterned layer has a plastic film and a pattern printed in a bottom surface of the plastic film. The plastic film together with the pattern is joined on top of the adhesive bonding film. The skid proof layer, made of thermal plastic rubber, is coated over a top surface of the plastic film. Additionally, the skid proof layer together with the patterned layer, the adhesive bonding film and the foam sheet defines a plurality of indentations and protrusions over a top surface of the skid proof layer so as to strengthen connection therebetween.