Presta Valve Stem 40 mm for Bicycle, Tubeless Brass Valve Stem Presta Valve Core Remover Tool Kit（12 Pieces ）

【What you will get】the package contains 6 pieces 40 mm brass presta valves and 6 pieces french stem valve core remover tools, sufficient quantity to meet your daily needs, you can take these accessories and enjoy your bike trip, 【Durable material】the tubeless valves stems kit is made of quality brass, which takes the hassle out of tubeless, it is lightweight due to its brass construction, sturdy and durable, not easy to fray and get rust, and the stems have removable valve c, 【Practical function】the tubeless valve stems are handy tools, which is designed to remove and install presta valve cores, bringing more convenience to your daily bicycling, 【Conventional application】it is suitable for most of wheel models and other tubeless rims, etc., the presta valves with base are suitable for installing on different rims; they are quick to set up, providing a good seal for you to change your sealant, 【Easy to use】firstly, check if the valve core is tight, remove the locking nut and O-ring, insert the valve stem through the valve hole in the edge, and place the O-ring on the valve stem, screw the locking nut onto the valve stem, then tighten the l