Flexible Polyurethane Air Tubing PU Pneumatic Hose 6x4mm 3Meters Black Product Name : Polyurethane Air Tubing;Material : Polyurethane(PU) Outside Diameter : 6mm / 0.24";Inside Diameter : 4mm / 0.16" Wall Thickness : 1mm / 0.04";Total Length : 3Meters/10ft Color : Black;Weight : 68g Package Content : 1 x Polyurethane Air Tubing