Echo SRM-2120 String TrimmerDescription: The SRM 2120 String Trimmer is ideal for homeowners seeking speed, efficiency, and comfort. It features a 16 in. cutting swath for fast trimming, a Rapid Loader head for quick line changes, and ergonomic handles. The i 30 starting system offers ease of use for the homeowner. Features: 21. 2 cc professional grade, 2 stroke engine i 30 starter reduces starting effort by 30% Rapid Loader Trimmer Head for lightening fast line changes