Blade size: Edge blade length 9", center hole :1/2", width 2", 9" x 2" general purpose heat treatment edge blade. Made of high-strength steel, heat treated, not easy to break and bend, with maximum durability and long-lasting performance. Chip or passivate, cut clean. These edge blades are 2 "x 9" and fit perfectly on lawn edges, not chips or cracks. The blade is already sharp, you don't need to sharpen it, the more you use it, the sharper it gets. It's hard and not easy to break. The product is made of high-quality material, not easy to break and bend, and the surface of the product is coated with anti-rust paint, which allows your machine to be used in extreme weather. Hard and not easy to break and durability make them work perfectly without bending. Date First Available November 21, 2023