Brand: Chway Color: BLACK Features: What does it fit: Replacement Spools Models: AF-100, AF-100-3ZP, AF-100-BKP, AF-100-2. Replacement Cap Model:RC100P. Trimmer Replacement Spool Fits for: BESTA510, BESTA512, BEASE620, CST1000, CST1200, CST2000, GH400, GH500, GH600, GH610, GH900, GH912, LST120, LST136, LST140, LST201, LST220, LST300, LST400, LST420, LST522, LST1018, LSTE522, LSTE523, LSTE525, NST1018, NST1024, NST1118, NST1810, NST2018, NST2118, ST7000, ST7200, ST7700, ST7701, ST8600, ST9000 Auto Feed: The Auto Feed Grass Trimmer Spool Line features a high-quality ABS spool and durable polyamide nylon thread, ensuring flexibility and a long service life. The trimmer replacement spool utilizes centrifugal force and aerodynamics to reduce drag, achieving fast cutting. Additionally,Automatic feeding system for bobbin change alleviates the tedious work of manual winding Upgraded Material Formula: After many research tests, the material ratio of the trimmer string has been optimised to increase the abrasion resistance of the trimmer string by 30%, which means that our weed wacker lasts longer, so that you don't have to stop and change the line so often! Stronger Toughness: 110LB tensile strength, toughness. In the high-speed operation of the trimmer line, the tougher trimmer line is better adapted to this high-speed rotation work, which can play a more effective role Professional Quality Service: as a professional seller of garden brands, we strictly grasp the quality of the products and maintain high reliability of the products, for the aging cycle, we can do up to two years, and have a complete high-quality after-sales service system model number: Spool(AF-100) Cap(RC100P) Part Number: Spool(AF-100) Cap(RC100P) Package Dimensions: 8.2 x 8.1 x 2.9 inches Listing and template services provided by inkFrog