ECHO SRM-2120SF The SRM-2120SF String Trimmer is designed for homeowners seeking speed and convenience. It features a 16-in. cutting swath for fast trimming, a Speed-Feed head for quick line changes, ergonomic handles, and the i-30™ starting system, which reduces starting effort by 30%. TOP FEATURES 21.2 cc professional-grade, 2-stroke engine i-30™ starter reduces starting effort by 30% Speed-Feed® 400 Trimmer Head for lightening-fast line changes SPECS Engine Displacement (cc) 21.2 Drive Shaft 4-Layer Cable Shaft Length (in) 59 Fuel Capacity (fl. oz.) 12.8 Cutting Head Speed-Feed® 400 Cutting Swath (in.) 16 Shaft Type Straight Starting System i-30™ Shield Std. SRM Nylon Line (in dia) .095 Cross-Fire® Dry Weight (lb) (Includes cutting head, excludes harness) 10.7 Warranty 5 year consumer / 1 year commercial