This blades fits 46-inch deep deck MTD mowers. Made of high quality steel blades. Installs in minutes. Austempered for an edge that stays sharp longer. Set includes one 14-7/8-inch rider blade and two 16-9/32-inch blades, all with star centre hole. Measures 26-1/2-inch length by 3-1/2-inch width by 6-1/2-inch height.