The PB13989 rotary mower blade is a high-quality aftermarket replacement part designed for various Honda lawnmower models, including the HRR216, HRS216, HRT216, HRX217, and HRC216 series. This durable blade measures 533.4 mm (21 inches) in length, with a 22.225 mm (7/8 inch) center hole and a width of 57.15 mm (2-1/4 inches). It is engineered to provide efficient and clean cutting performance, serving as a direct replacement for Honda OEM part numbers 72531-VE2-020, 72531-VG4-010, and 72531-VG4-000.