The Kubota K002133400 is a genuine OEM mulching blade designed for Kubota ZD series zero-turn mowers. This high-quality blade measures 533.4 mm (21 inches) in length, 63.5 mm (2.5 inches) in width, and 6.35 mm (0.25 inches) in thickness. It features a 25 mm (0.98 inch) center hole and 12.5 mm (0.49 inch) outer holes with a 63.5 mm (2.5 inch) spacing. Engineered for superior mulching performance, it helps maintain a pristine lawn finish and is compatible with models such as ZD326, ZD331, ZD1011, ZD1021, ZD1211, and ZD1511.