The EDGIT PRO is a trimming and edging guide for straight shaft trimmers. It indicates where the trimmer's string is cutting and holds the trimmer's spinning string in the groove. The EDGIT PRO 14'' disk rolls down the edge like a measuring wheel, guiding the string as it cuts a half-inch wide groove, producing perfect vertical edges on mulch beds, curbs and sidewalks... as fast as you can walk. Hold the trimmer level and use it as a mower deck. Use it to trim and mow bunker faces, plus edge sand traps, paved cart paths, sidewalks, curbs and mulched beds. For use on straight shaft trimmers only. Diameter 14".