Feature: Suitable for Multiple BLACK+DECKER String Trimmer Models: GH400, GH500, GH600, GH610, GH900, GH912, ST6600, ST7000, ST7200, ST7700, ST7701, ST8600, ST9000, CST1000, CST1200, CST2000, MTC220, MTE912, NST1018, NST1024, NST1118, NST1810, NST2018, NST2118, LST120, LST136, LST140, LST201, LST220, LST300, LST400, LST420, LST522, LST1018, LSTE523, LSTE525, BESTA510, BESTA512, BESTE620 【Cuts Fast and Wearable】Premium AF-100 0.065-inch/1.65mm diameter wearable line, and includes six high-quality spool trimmers for a better replacement and continuous operation. 【Saving Effort】Automatically feed the cutting rope with centrifugal force, so that you are not so tired during mowing. 【3+1+1 Accessories】Package contained 3 packs 30-foot trimmer line; 1 pack replacement spool cap cover; 1 pack spring. 【6+1+1 Accessories】Package contained 6 packs 30-foot trimmer line; 1 pack replacement spool cap cover; 1 pack spring. 【Auto Feed System Replacement】It was designed for Black Decker string trimmer. With Auto Feed System, Replacement Spool eases the tedious work of hand-winding spools. Product parameters: Compatible models: BLACK+DECKER Rope diameter: 0.065 inches Cord length: 30 feet Colour: Black Package includes: 3 packs 30-foot trimmer line + 1 pack replacement spool cap cover + 1 pack spring or 6 packs 30-foot trimmer line + 1 pack replacement spool cap cover + 1 pack spring Tired of Cheap Quality? Say no! Made of high quality material, durable and practical to use. Please check the size, type and shape of the product picture before buying to ensure that the product is suitable If you have any questions, please feel free to contact us, we will solve it for you immediately. Whether you have a positive or a wrong view of the product, we would love to see your comments Every customer can enjoy 30 days refund or replacement for Damaged/Quality Issues