POWERTEC 70161 2-1/2-Inch x 10-Foot Puncture Resistant Flexible PU Hose Robust ester-polyurethane is puncture resistance Made of ester- polyurethane with reinforced spring steel in the wall for greater durability 2-1/2-Inch x 10-Foot long, clear color. Wall thickness 0.4mm; compressible: 3:1 Ideal for sawdust, powder and ventilation Temperature range: -40C (-40F) - 90C (194F); short time up to 125C (257F)