This is a pre-owned standard 7 bar air hose for the mini-driver system. It's 3m long with an MA-7 fitting at the regulator supply end and the 3M two pin fitting at the device end.
We can also service these hoses if you have one that needs to be repaired? It will be usually be cheaper than buying a replacement. Go to our repairs page for details on how to send it in for a quote if required.