"Polyurethane cutting edges provide the rigidity of steel edges with the noise reduction and surface protection of a rubber edge. This one inch-thick edge is specially formulated for a long life. Meyer moldboards and cutting edges are pre-drilled, ready for installation. U.S.A. Pre Drilled Yes, Mounting Hardware Included No, Recommended For Meyer plows, Reversible No, Material Type Polyurethane, Dimensions W x D x H in. 96 x 1/2 x 6."