Replaces bump and feed gas trimmer heads. Fits most gas models for Homelite Toro John Deere Sears Craftsman Weed Whacker McCulloch Husqvarna and Weedeater. Fits most models for Echo. Fits all gas models and some electric models for Ryobi. Easy to install. Easy to use. Line replaces in seconds. Interchangeable with the three bladed Grass Gator I (1223-0918) and Grass Gator II (1223-0934). Recommended for fine edging along walks driveways foundations trees etc. Length: 14. Width: 10.25. Height: 11.25