The Simplicity 1687016 Blade Kit is an authentic OEM replacement part designed for 42-inch mower decks on various Simplicity lawn tractors. This kit includes two high-quality blades, engineered to deliver a precise and clean cut, enhancing the health and appearance of your lawn. Manufactured to Simplicity's rigorous standards, these blades ensure optimal performance, durability, and a perfect fit, maintaining the efficiency of your mowing equipment. Regular blade replacement is crucial for effective mulching and bagging.