The Troy-Bilt MTD 21" Mulching Lawnmower Blade is a high-quality mowing accessory designed for efficiency and precision in maintaining your lawn. Made in the United States, this black blade features a center hole for easy installation and reliable performance. With a length of 21 inches, it is designed to work seamlessly with your Troy-Bilt mower to help you achieve a beautifully trimmed and healthy yard. FREE SHIPPING