Keep your POV's and Bike's valve stems free from debris with our Pineapple Grenade Valve Stem Cap Set. Features: Made of Aluminum. Plastic black lever on each cap. (4) valve stem caps per set. Fits most valve stems. Sgt Grit suggests to Lubricate (WD40®) before attaching to valve stems. Available in Chrome, Black, Red, Gold, and Blue color options.