partstock TM Multi-Color Anodized Machined Aluminum Alloy Bicycle Bike Tire Valve Caps Dust Covers French Style Presta Valve Cap. Specially made for bike customization. Preventing air-leakage, top quality 6061 aluminum and anodized in wide range of colors. Personalize your bike with styles and colors, top quality ultra-light caps Machined anodized colorize your bicycle with these high quality presta valve caps Multi-color french presta valve caps,(colors sent at random) Ultra-light, weight only 0.6g per piece. Easy to installation