Air Pressure Tube Excellent Elasticity, Kink Resistance And Elasticity Memory Siz E- 8-Mm, Wp: 8 Kg/Cm2 Bp: 24 Kg/ Cm2, This Should Be Printed On Tube At Envery 1 Mtrs. Distanc E. Material: Polyurethane [ Warranty Period: 12 Months After The Date Of Delivery ] ]