The MTD 309069MA is a genuine OEM 21-inch mulching blade designed for select MTD walk-behind lawn mowers. This high-quality blade is engineered to provide superior cutting and mulching capabilities, helping to return nutrients to your lawn. It features a star-shaped center hole for secure attachment and is built for durability and long-lasting performance in various mowing conditions. Replace worn blades with the MTD 309069MA to maintain optimal mower efficiency and a healthy lawn appearance.