Arnold's 3-in-1 Universal Blade for 21" Cutting Decks is a heavy-duty, precision-crafted mower blade designed to deliver versatile cutting performance in mulching, side discharge, and rear bagging applications. Made from high-strength steel for durability and long-lasting sharpness, it promotes efficient airflow for improved grass lift, finer clipping dispersion, and a clean, even cut. Engineered to fit most 21-inch mower decks, this universal blade is an ideal replacement option for homeowners and professionals seeking reliable performance and flexibility across a variety of mowing conditions. | Arnold 3-in-1 Universal Blade for 21" Cutting Decks