plastic; Selfswitching design: features a selfswitching nozzle that allows for easy and between different of air valves, bicycle air pump head, bicycle lock with pump; Portable and convenient: easy to install and carry, this adapter is ideal for cyclists who need a reliable and portable, pump air nozzle, air pump replacement nozzles; Dualpurpose pump head: capable of both inflating and deflating, this dualuse pump head offers maximum versatility, pump head nozzle, cycle pump tire inflator; Seal: the antileak design ensures a seal, preventing any air loss during the inflation process, air pump hose adapter, bicycle tire pump; Easy to install and carry: designed for simple installation, this adapter is also portable and easy to store, making it great for cyclists, bike pump valve, bike floor pump
What's in the box
5 x Bike Pump