You'll never find an aluminum bling black valve stem covers so shiny and durable like this item!!! Feature: Anti-Leakage: The inside rotating thread structure tire valve stem caps can fastened tightly with tire stem. Anti-Rust: These black tire caps 4 pack can effectively prevent the valve from being covered with dust/snow/rainwater. extend the life of the tire. Strong and Sturdy: The black tire air caps don't fade or break up during car washes The black bling tire valve caps add the perfect touch of bling to tires, you will get MANY COMPLIMENTS! Specifications: Color: White Material: Aluminum alloy + Rhinestone Drilling Process: Handmade Size: 0.86"x 0.55"(H*W) Universal Fits: all standard American (Schrader) valves Package 4 * Black tire valve stem cover *** If you have any question please let me know,we are provide best service for you ***