Specifications: --Size(L*W): 16.4 *6.5mm --Weight: 0.03kg --Material: Aluminum alloy --Color: Black/Blue/Red/Gold/Sliver --Installation way: knobbing Feature: 1. Sturdy and durable: these wheel air valve covers are made of Aluminum alloy, hard and durable, the shape is not easy to change even if it gets pressure. 2. Sealed shape: the valve stems covers features with rubber o-ring seal inner, so it can not only help prevent leakage, but also can prevent water, snow, and dust from coming into the tire, thus prolong the tires service life. 3. Size: diameter is 6.5 m m, height is 16.4 m m, can fit your tires well with complete o-ring seal, dustproof and waterproof. 4.Knurling design can provide a good grip for screwing them on and off. Easy to install or remove when you want to check air pressure. Package: --1 PCS logo " CRF " Motorcycle Wheel Tire Valve caps --1 Pair logo " CRF " Motorcycle Wheel Tire Valve caps --2 Pair logo " CRF " Motorcycle Wheel Tire Valve caps