Troy-Bilt TB22 EC 25cc 2-cycle Curved Shaft String Trimmer Powered by a resilient 25cc 2-cycle gas engine with SpringAssist starting technology to make operating easy, along with JumpStart capable if you choose (*JumpStart sold separately) The curved shaft design offers the finest comfort and a direct view of the cutting line while trimming Multi-position adjustable handle reduces vibration and operator fatigue Equipped with a 17-inch cutting swath and dual line bump head The TB22 accepts TrimmerPlus attachments to transform into a blower, edger and more