The Toro 56239003 is a genuine OEM blowing blade designed for optimal performance on Toro Groundsmaster 328-D and 3280-D rotary mowers with 52-inch cutting decks. This durable blade measures 444.5 mm (17.5 inches) in length, 63.5 mm (2.5 inches) in width, and has a thickness of 6.35 mm (0.25 inches). It features a 15.875 mm (0.625 inches) center hole and two 7.9375 mm (0.3125 inches) outer holes spaced 63.5 mm (2.5 inches) apart, ensuring a precise fit and efficient grass blowing for a clean cut.