Sold and Priced as a set of four (4) - Blades are made of heavy-duty steel to exacting specifications. Each blade is designed for longer life and greater performance. Fits: Stone T-46 Allen 346 (AEC-101AFO) Bartell B346/B446 (TA410F) Marshalltown 44-3-3 & E-4 (A-4171) All 46in - Marshalltown Equivalent Sku 17444 Part # A4171