"This Meyer 8.5ft. Super-V Bottom-Trip Polyurethane Cutting Edge Kit provides the rigidity of steel edges and the noise-reducing properties of rubber edges while protecting sensitive surfaces. U.S.A. Recommended For Meyer plows, Mounting Hardware Included Yes, Pre Drilled Yes, Material Type Polyurethane. 1in. thick edge for long life Bottom-trip design reverses for extended use Pre-drilled moldboards and cutting edges for easy installation Includes mounting hardware"