This Reinforced hose are of good quality,Highly transparent,nontoxic and soft. Size: 5/16"I.D: 9mmO.D: 16mmN.W: 180g/mColor:Inner layer:transparent blueMiddle layer: weave-reinforced lineOutside layer:transparent-blueTemperature: -10°C- +60°CW.P:3 bar/43psiB.P: 10bar/145psiPKG: shrink wrap, weave bag transparent gas hose