EXCELLENT MATERIAL: This air hose is blended rubber and PVC air hose is heavy duty, lightweight, flexibility,abrasion resistance and all weather use. EASE TO USE: Equiped with 1/4” industrial NPT fittings and quick coupler for directly connect to air compressor and air tools. No need to buy seperately air fittings. BOTH ENDS INSTALLED BEND RESTRICTORS: Bend restrictors reduce kinking and help to increase the life of the air hose HIGH STRENGTH: 3/8 INCH inner diameter by 50 FEET long delivers up to 300 PSI for maximum working pressure, 1200 PSI bursting pressure. WARRANTY: TWO YEAR limited warranty. If any problems, Please feel free to contact us.