Abstract: An adjustable ab wheel has a main shaft and two wheels mounted on the main shaft. The main shaft has two external threaded sections. Each one of the two external threaded sections has a thread direction opposite to the thread direction of the other one of the two external threaded sections. Each one of the two wheels has a threaded hole axially defined through the wheel and mounted with a respective one of the two external threaded sections. When a user rolls the two wheels forward, the two wheels approach each other and abut against each other. Abutment between the two wheels allows the two wheels to brake themselves, so that the adjustable ab wheel can prevent users from over rolling the two wheels forward and suddenly falling down to the floor.

Abstract: A multipurpose workout chair is an exercising equipment that not only can be used for workout training, but also can be used as a chair. The multipurpose workout chair includes adjustment devices and other components acting with each other which allows the multipurpose purpose chair to be changed into various configurations according to different training methods and each of the training methods may be executed by one or more different muscles.

Abstract: A wave-shaped ramp has two ascending platforms and a curved platform. Each ascending platform has a ground end, a tip end, and a slope. The tip end is higher than the ground end. The slope connects the ground end and the tip end. The curved platform is mounted between the two ascending platforms. Two ends of the curved platform are higher than a middle of the curved platform. With the curved platform forming a cavity shape between the two ascending platforms, the wave-shaped ramp provides more varieties in height, and thereby the player can perform more fancy stunts on the wave-shaped ramp. Besides, the wave-shaped ramp is a combination of the ascending platforms and the curved platform, so the wave-shaped ramp is separable and is capable of being stacked for storage.

Abstract: An exercise pad has a base and a pad body. The base is annular and is composed of multiple curved base units. Each base unit has a concave top surface, a bottom surface, an inner edge, two ends, and a curved recess. The ends of the base unit are provided respectively with at least one connection recess and at least one connection post. The curved recess is defined in the bottom surface, and the curved recesses of the multiple base units form an annular recess. The pad body is inflatable, is combined with the base, and has a convex bottom and an annular connection flange. The convex bottom is complementary in shape with the concave top surfaces of the base units. The annular connection flange is formed around a bottom edge of the convex bottom and extends into the annular recess.

Abstract: An exercise pad has a base and a pad body. The base is annular and is composed of multiple curved base units. Each base unit has a concave top surface, a bottom surface, an inner edge, two ends, and a curved recess. The ends of the base unit are provided respectively with at least one connection recess and at least one connection post. The curved recess is defined in the bottom surface, and the curved recesses of the multiple base units form an annular recess. The pad body is inflatable, is combined with the base, and has a convex bottom and an annular connection flange. The convex bottom is complementary in shape with the concave top surfaces of the base units. The annular connection flange is formed around a bottom edge of the convex bottom and extends into the annular recess.

Abstract: A detachable axle comprises an axial body, two engaging portions, and two pivoting portions. The two engaging portions are respectively formed on two axial ends of the axial body, each of the engaging portions has an engaging groove, and the engaging groove is radially formed on the engaging portion. The two pivoting portions are respectively formed on the two engaging portions and extend outwards from the engaging portions. In use, the detachable axle is engaged with a general building block by the two engaging portions. The two pivoting portions extend out of the two sides of the building block and wheels are mounted around the two pivoting portions, so the building block has a moving function. The axial body and the building block could be separated to make the building block become the general combining type. The versatility of the general building block is expanded without any limitation.

Abstract: A single-side-clamped slide has a slide body and a fixing assembly. The fixing assembly has a connecting rod mounted on the slide body, and at least one clamping unit. Each clamping unit has a hook and an abutter mounted through and screwed with the hook. When in use, the clamping unit is mounted around a rear side of a tread of an open riser stairway, and abuts downward against a top surface of the tread. Then, the abutter is rotated until tightly abutting upward against a bottom of the tread, such that the clamping unit and the abutter securely clamp the tread. Therefore, the fixing assembly can be stably connected to the tread even though only clamping the rear side of the tread. In addition, the slide can be adapted to treads with different front-rear lengths since the fixing assembly only clamps one single side of the tread.

Abstract: The jumping platform has a lateral mounting portion and a lateral lapping portion respectively formed on two lateral surfaces of the jumping platform. The extendable jumping platform assembly has multiple jumping platforms, multiple extending boards, and a jumping board. The jumping platform assembly has a lateral mounting portion and a lateral lapping portion so that the jumping platforms and the extending boards can be juxtaposed for extending lateral leaping range safely and extending sliding length according to the usage. One end of the extending board is mounted on the jumping platform, the other end of the extending board is mounted on the jumping board, and each one of the extending board and the jumping board has a leg assembly for supporting.

Abstract: A slide has a slide body and a fixing assembly. The fixing assembly has a connecting rod mounted on the slide body, a flexible unit, and a fixing unit. An end of the flexible unit is connected to the connecting rod. The fixing unit is mounted on the flexible unit. The fixing unit and the flexible unit jointly fix a tread of an open riser stairway. As the flexible unit is bendable, the flexible unit and the fixing unit can be easily moved to clamp the tread, thereby facilitating easy assembly and disassembly.

Abstract: The slide assembly comprises a slide and at least one pushing unit. The slide has a platform and a sliding section. The at least one pushing unit is connected to the slide and has a connecting member, an adjusting member, two pushing blocks, and a securing member. The connecting member is securely mounted in the slide and two ends of the connecting member respectively extend out of the slide. The adjusting member is movably connected to one of the two ends of the connecting member and has multiple fastening portions spaced from each other. The two pushing blocks are respectively connected to the connecting member and the adjusting member. The securing member is selectively fastened with one of the fastening portions. The slide assembly is securely mounted on the stairway and has enhanced stability to reduce risk of playing on the slide.

Abstract: The clamped slide assembly comprises a slide, a main body, at least one inner clamping panel, and a clamping unit. The slide has a platform. The main body is securely mounted on the platform. The at least one inner clamping panel is securely mounted on the platform. The clamping unit is movably mounted on the main body and has an outer clamping panel, a screwing rod, and a spanner. The outer clamping panel is spaced apart from the inner clamping panel. The screwing rod is screwed with the main body. The screwing rod is mounted through the outer clamping panel. The spanner is rotatably and eccentrically mounted around the screwing rod, and the outer clamping panel is pushed towards the main body and the inner clamping panel to fasten on an open riser stair, and the clamped slide assembly can achieve the goal of saving space.

Abstract: A combination slide has a slide body and two pressing rods. The slide body has a head member, a tail member and multiple connecting members. The head member has a head quick-release engaging element. The tail member has a tail quick-release engaging element. Each connecting member has an upper intermediate quick-release engaging element engaged detachably with the head quick-release engaging element and a lower intermediate quick-release engaging element engaged detachably with the tail quick-release engaging element of the tail member or the upper intermediate quick-release engaging element of an adjacent connecting member. The combination slide can be quickly assembled or disassembled.