Professional lightweight guide bar designed to reduce kickback for better cutting control. Top performance for professional woodcutters. Fits many models, including but not limited to the following: Stihl - 021, Stihl - 025, Stihl - 70, Stihl - MS 230 C, Stihl - MS 241 C-M, Stihl - MS 250 C, Stihl - MS 251, Stihl - 025C, Stihl - MS 251 C, Stihl - MS 250 C-BE, Stihl - MS 250, Stihl - MS 230 C-BE, Stihl - MS 251 C-BE, Stihl - MS 230.