Features a 21.2 cc professional-grade 2-stroke engine. I-30 starting system reduces starting effort by 30%. Reduced-effort starting system makes start-ups a breeze. Low-vibration design helps reduce fatigue for longer use.Speed-Feed 400 trimmer head reloads in seconds without tools or disassembly. Ergonomic cushioned front and rear handles for user comfort. Straight shaft with flex cable drive provides a long reach. Trimmer weights 11.5 lbs. Bump head trimmer line release enables continuous operation by instantly letting out premeasured lengths of line. Note: product may vary by store. Maximum Cutting Path Diameter in. Antivibration, Automatic Line-Advance System, Translucent Fuel Tank.