Solve the inflation problem: the inflatable one-way valve check valve with 39 mm length - for some electric scooters with short tyres, inflation ports, example for xiaomi M365 front wheel, this extended inflation valve can be inserted into the wheel hole and easily connect the pump, which completes the inflation process faster. No air leakage & high quality: our tire valve extension has an extended plated brass face, which makes it good and waterproof, the two pipes are thread, so that the inflation valve and pump are without crashing. Important advantages: 1. Prevents you from losing a lot of air when disconnecting the pump; 2. Easy to use; 3. Works with any tyre pump (standard size). Overall: without this tool, it is almost impossible to pump the right pressure into the front tyre. No air loss during assembly and disassembly.