2Pcs Tubeless Presta Valve Stem Kit, Compatible Sealant Ul-Light Aluminum Extender Valves for MTB Bicycle Tire

About this item1. Long-Lasting Quality Valve Stem made from high-quality bra for rior bility2. Versatile & Tubele Ready designed to fit tubele-ready rims and standard converted rims for universal compatibility3. & Allows Better Sealing: Features an O-ring for better sealing, removable valve core for sealant injection, and has a bonus core toolFeatures:1) This Tubele Valve Stem could help you save a tire on the bike2) Removable tubele valve stem allows you to add tubele sealant3) Fits round rubber base and suits most mountain bike4) Core Material: Copper5) No leaking with high quality base on over 2-year studySpecifications:1. Core Material: Copper2. Color: Metal3. Size: 4.4cm  or  4.0cmPackage includes:2Pcs * Tubele Valve Stem