Produced of metal and with o-Rings seal, strong and strong, not easy to break Used to inflate basketball, football, volleyball,, toy balls and other sports balls to install and easy to use; Simply screw in using this standard Pumps thread These tool in normal size and design, good accessories for compressors, electric or manual air Pumps Used to inflate various inflatable toy, balloons, air cushions, airbeds, swimming rings, yogas ball and other gym ball, Manufacturer: Beimus