Material: PTFE - Polytetrafluoroethylene Cross Section Width (in): 0.05 Cross Section Height (in): 0.18 Notes: Dimensions and Material Descriptions provided for reference only. Color may differ from image. Inside Diameter (in): 1.18 Material Description: PTFE provides superior performance in Air, Engine Oil, Diesel Fuel and Coolant applications, but is sensitive to installation damage and debris. It works well at very high temperatures.