AYK1011 Features: * Replacement head * Eliminates the hassles and frustration of bump and feed type heads * Fits most gas models for Echo, Homelite, Ryobi, Husqvarna, Sears, Craftsman, Weed Whacker, McCulloch, Toro, John Deer, and Weedeater * Fits some Ryobi electric models * Blades change in seconds * Use for heavy grass and weeds where edging requirements are minimal * Easiest bladed head available to install * No tools required Specifications: * Replacement blades 4610 available (1223-0942)