Function Regular checking of tire pressure is essential. It extends tire life, reduces fuel consumption and improves driving safety. Extend the life of the original tire valve bolts. Chrome FinishThis Valve Stem Extenders consists of 4 metal hood extenders with screw fixing and chrome plated brass finish for durability and water resistance. Easy InstallationThe Car Tire Valve Stem Extension Adaptor is easy to install, you just need simply screw onto the current tire bar, no need extra dust cover. Easy Pressure Detection Screws on instead of the original hood. It does not need to be removed to check air pressure or increase air pressure. It is very easy to check tire pressure without losing the hood without losing the hood, thereby effectively preventing the gradual loss of air and saving real money. Utility There will be no pressure loss even if the coil is damaged or dirty. It is really a very good extension adapter, which can guarantee your safety in many ways. Specifications: Material: Chrome Plated Brass Color: silver IPS: 60 PSI Maximum Length: 39mm / 1.54 Thread Diameter: 7.5mm / 0.3 Installation Type: Screw-On Type Package Weight: 43g Placement on Vehicle: Left, Right, Front, Rear Package Included: 4 x Valve Cap Stem Extensions Note: 1. Please allow 1-3mm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. 3. Please check as much as possible to make sure the item is the one that you need.