Material: TPU - Polyurethane Inside Diameter (in): 0.8 Coating: None Cross Section Diameter (in): 0.14 Notes: Dimensions and Material Descriptions provided for reference only. Color may differ from image. Material Description: TPU has excellent abrasion and cut resistance, and performs well in Air applications. It also works in Engine Oil, Diesel Fuel and Coolant applications. Do not use with water-soluble fluids. TPU should not be used in high temperature applications.