2 Pcs Tubeless Presta Valves, 44mm Universal Presta Valve Core, with Valve Cap Dust Covers and Valve Core Remover Tool For Tubeless Road & MTB Bike Works w/Stan's, Vittoria, Continental, Kenda & MORE

【Durable material】These valve cores are made of rubber and copper, which increases the corrosion resistance of the valve core and valve stem, especially when installing the valve core in an aluminum valve stem, durable, safe and reliable. 【Detachable Coil】The detachable coil is very flexible, easy to install and remove, easy to inflate and add sealant. With the help of the valve stem you can easily adjust the tire bead, the unrestricted airflow and a large opening at the interface between the valve and the rim. 【Good sealing effect】Suitable for use with a round rubber base with O-rings. Elaborate craftsmanship offers a good sealing effect, can largely be sealed and is equipped with a lock nut to attach the valve to the rim. You don't have to worry about leaks. 【2 valve stem & small wrenches】A set of 2 tire valves plus a small wrench. The tapered design of the tire valve stem allows your sealant to flow freely inside the tire and you don't have to worry about the Presta valve valve getting blocked. You can quickly remove the coil with a small wrench. 【Special bicycle accessories】The total length is 58mm, 20g, small and easy to carry. Suitable for most mountain bike and rim profiles, MTB bicycle valve. If your valves have stopped working or are worn out, they're a good replacement.