The Coilhose CH10DL is a 1/4-Inch FPT Ball Foot Chuck. This Chuck allows you to connect directly to your tire"s Stem Valve and inflate to the desired pressure. Features: * Allows you to connect directly to your tires stem valve and inflate to the desired pressure * Must use PTFE tape to seal the connection What"s In the Box: * Coilhose CH10DL 1/4-Inch FPT Ball Foot Chuck