The MTD 74205431 (also cross-referenced as 94205431) is a genuine 21-inch 2-in-1 mower blade designed for various MTD, Cub Cadet, and Troy-Bilt walk-behind lawn mowers. This durable blade features a 6-point star center hole for secure attachment and is engineered for both mulching and bagging operations, providing a clean cut and efficient grass processing. Measuring approximately 533.4 mm in length, 57.15 mm in width, and 3.81 mm in thickness, it ensures optimal performance for compatible 21-inch cutting decks.