RYOBI 21 in. Replacement Blade for 21 in. Self-Propelled Mower

Feel confident in your cut as this blade is made with hardened steel, making it dependable and durable. For best results, replace your mower blade every year. RYOBI 21 in. Self-Propelled Mower. Compatible with RYOBI 21 Lawn Mowers: See Below.