Abstract: An environmentally-friendly, fire-resistant board includes a primary layer mainly made of a composition comprised of a magnesite compound and carborundum, wherein the primary layer enables the fire-resistant board to resist fire, to retard flame, to endure water and moisture, to prevent deformation, and to withstand bend as well as impact.

Abstract: A laminated board includes a primary layer mainly made of magnesium oxide or magnesium sulfate, wherein the primary layer provides the laminated board with fireproof ability, moisture-proof ability and bendability.

Abstract: A device is designed to exercise foot muscle and is formed of a base on which two rotary mounts are disposed. The rotary mounts are provided with two upright fastening plates, each having a fastening hole. Two footrests are provided in the underside with two pivoting plates, each having a pivoting hole. The footrests are pivotally fastened to the rotary mounts such that the pivoting plates and the fastening plates are pivoted together by two pivots which are disposed in the pivoting hole and the fastening hole. The footrests turn horizontally along with the rotary mounts and turn up and down on the pivots.

Abstract: A portable exercise device includes a U-shaped frame having two free ends opposite in location to each other. The two free ends are provided with a plurality of orientation rollers pivoted thereto, and a swivel arm pivoted thereto. The swivel arms of the two free ends are connected by an elastic belt and are provided with a plurality of pressure rollers pivoted thereto. As the U-shaped frame is moved in all directions by an exerciser, the orientation rollers and the pressure rollers roll over the waist and the belly of the exerciser.

Abstract: An automatic tying shoelace is disclosed. Thereby, the user does not need to tie the shoelace body is disclosed. The shoelace body can be fixed by two positioning devices at the lateral and rear sides. The shoelace has a long shoelace body and at least two positioning devices. A first positioning device and a second positioning device; one free end of the shoelace body has respective release-proof devices. A position of the first positioning device is lower than that of the second positioning device. The first positioning device serves for being inserted by the free end of the shoelace body and then after the shoelace body is tightened. The shoelace body is released in the second positioning device.

Abstract: A portable exercise device comprises a U-shaped frame having two free ends opposite in location to each other. The two free ends are provided with a plurality of orientation rollers pivoted thereto, and a swivel arm pivoted thereto. The swivel arms of the two free ends are connected by an elastic belt and are provided with a plurality of pressure rollers pivoted thereto. As the U-shaped frame is moved in all directions by an exerciser, the orientation rollers and the pressure rollers roll over the waist and the belly of the exerciser.

Abstract: A raincoat concealing backpack with a structure that integrates as an unit both the raincoat and the shoulder-carry style backpack. The main body of the shoulder-carry style backpack is made from flexible fabric. The backpack includes a pair of straps, and a zipper is located on the perimeter of the front surface of the backpack. The zipper can be pulled open to expose a secondary interior surface, and a raincoat is sewed onto the secondary interior surface. The back side of the raincoat is equipped with a containing pouch.