Review on Xotic Tech Tire Stem Valve Caps Wheel Valve Covers Car Dustproof Tires Cap Leak-Proof Air Protection Screw-On Easy-Grip Use For All Cars SUVs Bike Motorcycles Trucks (Gun Grey Grenade Bomb) - 4PCS by Evan Casillas

Thanks to my knowledge gained in practice I can say that these tire valve covers are an absolute waste of money. The only pro is that they look cool on first sight. However, the cons outweigh any aesthetic advantage .They are difficult to install and easily come off while driving, which could lead to a dangerous situation on the road. These are not practical nor worth the money. Stick to traditional valve caps. Automotive buyers, save your money!