Fast valve needle for inflating and deflating, suitable for off-road enthusiasts. Fast for inflating and deflating, a clear difference from the ordinary one. This way, there is no high effort on the compressor during inflation and a longer life for it. 🔴 Fast needle from 0 to 34 psi in 30 seconds (tire shop air). 🔴 Ordinary needle from 0 to 18 psi in 30 seconds (tire shop air). 🔵 The difference is 16 psi. 🔴 4 pieces for 12﷼