Description Are you looking for a professional, yet bike stem set Are you in search of a sturdy, trustworthy tool that can do multiple jobs at once , ! Our professional bike stem set must meet you needs. It is one of the for you. Features -Material: Aluminum Alloy. - : The aluminum alloy has , can tighten nut and protect rim. - It protects of tubeless test tube from scratches. It is durable, not easy to deform, safe and reliable. - The detachable coil is very flexible, easy to install and disassemble, easy to inflate and add sealant. - Made with fine craftsmanship, it is well sealed. Equipped with nut to fix the on the rim. No need to worry about leakage. - Suitable for most mountain bikes and rim contours, valves. Package list: 2 x air nozzles 2 x air nozzle pads 2 x 1 x wrench 2 x plastic mouth caps