Heavy-Duty Replacement Blade – Suitable for Lawn Mowers, Weed Trimmers, Straight Shaft Trimmers – Yard Firm Hollow Hardened Steel Construction, Efficient Cutting of Weeds, Grass, and Shrubs – Compatible with 25.4mm Shaft – Durable Lawn Care Blade, Sharp Cutting Edge, Long-Lasting Durability, Gardening Professional Accessories