Troy-Bilt TB22 25cc 2-Cycle Curved Shaft Gas String Trimmer. It has a 17" cutting swath for wider coverage, attachment capability for versatility, SpringAssist starting system for effortless operation, .095" dual line bump head for precise cutting, adjustable standard D-handle for comfort, and compatible with replacement spool TV #177123. Backed by a 2-year warranty, this trimmer is TrimmerPlus® attachment capable, making it versatile and easy to use.