The tubeless valves can prevent unsafe factors effectively which caused by auto vacuum valves puncture rollover 90 degree bent design, easy to carry and use Made of aluminium alloy, durable in use Comes with rubber seal, it can effectively avoid leak Easy DIY installation Material: Aluminum Alloy, Rubber Valve Stem Diameter: 11.3mm/0.4" Valve Stem Size: 4.3 x 2.6cm/1.7" x 1" (LxW) Color: Black Fitment: For standard tubeless tires wheels with 11.3mm valve stems, such as Honda, Kawasaki, Suzuki, and Yamaha, and also fit for some bike wheels with 11.3mm tire valve stems