Keep your lawn looking pristine with this 21-inch replacement mower blade designed specifically for Greenworks and kobalt lawn mowers. This durable blade delivers clean, precise cuts across your yard, maintaining the optimal performance of your mower. The 21-inch length provides excellent coverage for efficient mowing, while the sharp cutting edge helps maintain a healthy, well-manicured lawn. Compatible with Greenworks 21-inch mowers, this replacement blade is constructed to meet the original equipment specifications. Regular blade replacement helps ensure consistent cutting quality and extends the life of your lawn mower. Installing a fresh blade can improve your mower's cutting efficiency and help achieve that perfectly manicured look for your lawn.