... *12.6*100Mcolor:blue,orange,red,black,transparent,yellowSpecification ( PU Hose ) MODELSpecificationMODELSpecificationPU-0425Outer:4mm Inner:2.5mmPU-1008Outer:10mm Inner:8mmPU ... Inner::6.5mmPU-1613Outer:16mm Inner:13mm pu tube ,pu hose, pu tubing, polyurethane tube