non-toxic, resistant to high pressure, corrosion and tension, high-elastic, flexible , long-term use is not easy to harden Size : 3/8 " I.D: 9 mmO.D: 16mmN.W: 230g/mColor:Inner layer: blackMiddle layer: steel lineOutside layer:blueAppearance : stripeW.P : 6.7bar/101psiB.P : 20bar/305psiPKG : transparent wrap film,weave bag 1.8meter/ pipece or 50meters/roll or 25meters/roll 

stainless steal gas hose