Abstract: An inflatable product includes an inflatable chamber and a supplemental layer. The supplemental layer is disposed on the inflatable chamber. Further, the supplemental layer is directly or indirectly fixed to the inflatable chamber by sewing. The inflatable chamber is made of plastic. The material of the supplemental layer is different from that of the inflatable chamber.

Abstract: A measuring device includes a base, a holding member mounted to the base and having a notch for holding a cylinder, a guide rod connected to the base and defining an axial direction parallel to an axial direction of the cylinder, and a gauge mounted with the guide rod and defining a measuring direction perpendicular to the axial direction of the cylinder. As a result, the measuring device of the present invention has the advantage of proving a simple way to measure the roundness of the cylinder.

Abstract: Disposable female urinal structure including a main body made of paper or plastic material coated with a waterproof layer. In an unfolded state, a lower edge of the main body is formed with an inward arched edge. The main body is provided with two folding lines the distance between which is downward tapered. The folding lines divides the main body into three sections. A cover section is defined between the folding lines. The middle of the upper edge of the cover section is an outward arched edge, while two sides of the middle are inward arched edges. One side of the cover section is a guiding section, while the other side thereof is an adhesion section. The width of the cover section is equal to that of the guiding section, while the length of the cover section is shorter. The middle of upper edge of the guiding section is an outward protruding and arched edge, while two sides of the middle are inward arched edges.