Crafted from ABS, the set is wear resistant and not easy to break. The set can be used to various inflatable toy, balloons, swimming rings, bicycles and other fitness products. The set is suitable for inflatable basketball, football, volleyball, and other sports footballs. The set can be used to inflatable Bicycles tires and mountain bike tires, which makes your cycling more joyful . The set is and easy to use, just use standard pumps thread to screw in, the set is essential tool for traveling outdoor sports.