The Oregon 91-291 is a high-quality replacement lawn mower blade designed for various Honda HRN216 and HRX217 series models. This blade measures 533.4 mm (21 inches) in length, 57.15 mm (2.25 inches) in width, and has a thickness of 3.81 mm (0.150 inches). It features a 20.32 mm (0.800 inch) center hole and two 10.3 mm (0.406 inch) outer holes, spaced 95.25 mm (3.75 inches) apart. It replaces Honda OEM part numbers 72531-VH7-000 and 72531-VH7-000A, ensuring a precise fit and reliable cutting performance for your Honda lawnmower.