EAI Wiper Seal are made from Nitrile Rubber, general in 90 Shore A, for press-in fitting on open housings. They are used for Dirt Exclusion.Typical applications are Excavators Equipments, Lift Trucks, and Hydraulic Presses. Bore Diameter: 32mm, Outer Diameter: 42mm, Width: 5mm. WPR-032X42X5/7