Material: NBR - Nitrile Inside Diameter (in): 1.65 Cross Section Width (in): 0.04 Material Description: NBR is a versatile material with good abrasion and cut resistance. It works well in Air, Engine Oil, Diesel Fuel, Coolant/Urea, Hydraulic Oil and Automatic Transmission Fluid applications. Do not use with Biodiesel. Cross Section Height (in): 0.12 Notes: Dimensions and Material Descriptions provided for reference only. Color may differ from image.