Quality Material: The Presta Valve Cap Is Made Of Anodized Aluminum, Sturdy And Not Easy To Break, Cover Your Valves To Prevent Them From Being Destroyed, Extend The Service Life Of The ValvePackage Includes: 40 Pieces Of Valve Caps Presta For Bike Are Designed In 10 Different Colors, 4 Pieces For Each Color (Black, Red, Blue, Silver, Green, Purple, Gold, Sky Blue, Orange And Titanium Gray), Different Colors For You To ReplaceProtect Your Bike : These Bike Tire Valve Caps Are Helpful To Protect Your Valve Core From Destruction, Dirt Or DustRocket Shape Design: Cute Rocket Shape Design Valve Caps Would Make Your Bike More Stylish And Dynamic, Feeling Like Rocket Speed, Also Can Decorate Your Bike Tire Caps With Rocket StyleEasy To Install: Unscrew The Gas Nozzle Lamp On The Gas Nozzle, Then Unscrew The Presta-Valve; Then Loosen The Nut And Try To Squeeze It; And Screw On The Presta Stem Of Your Presta Valve Cap Later So You Can Start Pumping