Swisher Trim Max STD67522BS 6.75 Gross Torque 22-Inch Deluxe String Trimmer 6.75 Gross Torque Briggs & Stratton EXI engine with READY START and CHECK AND ADD technology 22" cutting width - 4 string/8 cutting lines Engage and disengage trimmer head from handlebar Trimmer head rotates 90 degrees vertically to act as an edger No more oil changes, just check and add