verry tidy to use but i wouldnt have one. there a water trap when coiled up i allways keep airlines flat and srait as possible no chance of a buildup of water
I had a look at one good size for small air tools, hose is quite brittle tho, it's plasticky instead of rubber
3/8" Bore on mine. Had it 6 years probably, just replaced the hose on it as it was cracking all over the place.
I'm amazed the rotating coupling isn't leaking yet actually.
Clarke racing air hose is a good choice, very flexible