ITEM NAME:4mm x 2.5mm Flexible Black Polyurethane Air PU Pneumatic Hose 5M 16ft V4F9 4mm x 2.5mm Flexible Black Polyurethane Air PU Pneumatic Hose 5M 16ft V4F9 This polyurethane hose is flexible and provides excellent bending capabilities and is perfect for pneumatic control or robotic systems. It is also resistant to many chemicals, gases and oils as well as having excellent abrasion resistance. Perfect for use with pressure in fittings, compression fittings, quick coupler fittings and hose fittings. Product Name: polyurethane air hose Material: polyurethane (PU) Outside Dmr: 4mm / 0.16 inch Inside Dmr: 2.5mm / 0.1 inch Wall Thickness: 0.75mm / 0.03 inch Total length: 5 meters / 16ft Color: Black Net weight: 48g Scope of.Material: polyurethane (PU). Perfect for use with pressure in fittings, compression fittings, quick coupler fittings and hose fittings.