Grass Gator 3630-4 Universal Bump & Feed Trimmer Head: * Will fit 99% of all gas trimmers, including Ryobi, John Deere, Echo, Stihl, Homelite, Bolens, Weedeater, Craftsman, Toro, Cub Cadet, Troy Bilt, Poulan, and most other makes * Designed for all gas trimmers, and is an excellent replacement for your original bump and feed trimmer head * Excellent for both grass and weeds * Can handle .095 to .105 diameter line, which gives you more versatility in the choice of trimmer line to use * Easy to install, without tools, and is easy to use