Minidot Car Auto Motorcycle Bike Metal Cool Tyre Tire Valve Stem Covers Caps 5 PCS Size: 3.6cm x 1.8cm Inner diameter: 0.7cm Made by aluminum and plastic material,Solid and durable, Cool grenade style design Ideal for motorcycles, cars, vans ,bicycles and so on. Protective Car Tyre Valve Caps to help prevent leakage, dirt and other objects from damaging cores