1 Pair 19mm 25mm 39mm Screw-on Valve Cap Stem Extension Wheel Tire Cap Extender Adapter for Auto Car Truck Chrome Plated Brass About this item 1. [Durable Performance] The chrome plated brass surface is durable and waterproof, which prolongs the service life of the original tire valve screws. 2. [Screw-on Design] This extension valve cap is screwed on instead of the original valve cap and doesn't need to be removed to check air pressure or to add air. 3. [Easy Installation] Easy to install, simply screw onto current tire stem, no additional dust cap required. 4. [Increase Tire Life Span] This screw-on valve cap stem extension will increase tire life span, lower fuel consumption and increase driving safety. 5. [Easy to Check Pressure] It is very easy to check tire pressure without losing your valve caps and effectively prevent gradual loss of air. Specification: Color: Silver Tone Fit for: Universal Length: 39mm / 25mm / 19mm Material: Chrome Plated Brass Thread Diameter: 7.5mm / 0.30"(D) Installation Type: Screw-On Type Features: 100% brand new and high quality. Increase life span of original tyre valve screw. No pressure loss even when the valve core is damaged or dirty. Chrome plated brass surface made it durable and water repellent. Easy to check tyre pressure without the chance to lose your valve cap. Easy to install - simply screw onto current tire stem, no additional dust cap required. Package Include: 2Pcs * Valve Stem Extensions _x000D_ _x000D_ _x000D_