General Introduction: 1.This is one set of tyre stem caps for car 2.Best decoration and protection for your car 3.Easy to install, only screws onto tire valve stem 4.Aluminum Tire Valve Caps to replace lost, missing, or change the ones already on your vehicle with a different color. 5.these Tire Valve Caps prevent the valve stem from leaking. 6.Customize your car right down to the tires. Easy to Install, just screw right on. 7.Materials: Aluminum alloy; Color: Black/Red/Purple/Green/Blue/Silver/Yellow Product Details; Package Size;10mm*16mm Package Contents: 4 x Aluminum Tire Valve Caps/Protect valve/Fit all Schrader valve