This product is a set of 2 inflatable kayak screw air valve plugs made of ABS material. It is designed to replace leaks in rafts, canoes, and other water sports equipment. The black modern style plugs have a small package weight of 0.03 kilograms and dimensions of 5.04 x 3.19 x 1.93 inches. These valve plugs are essential for maintaining air pressure in your watercraft while out on the water.