These oversized Presta valve nuts are specifically designed to provide extra clearance and extra leverage to better tighten tubeless valves. They're especially helpful on single-wall rims.Kit included two 35mm tubeless valvesConcave to allow better engagement of the valve/rim interfaceOversize to provide extra torque when tighteningEspecially helpful on single-wall rim tubeless setupsCNC-machined AL-6061 Problem Solvers Super P-Nut Tubeless Valve Nuts Tubeless Valves UPC: 708752160514