【Compatibility】CMZST0803 CMZST080 Replacements Spool Compatible with Craftsman CMCST910,CMCST910M,CMCST910M1 Series WeedWacker String Trimmers 【Easy to use】0.080" 20ft pre-wound line,auto feed system saves you tedious hand winding time for you 【Twist Line】DNA Twist line design,made of quality ABS spool and tough nylon thread,make cutting faster and more efficient,trimmer lines stronger and more durable,thus improving efficiency 【Attention Safety】Wear eye protection and long pants when using this product to avoid injury caused by spilled lines. The product is only suitable for young grasses. For strong weeds, use other tools such as blades to trim 【You Will Get】You Will Get 6*Replacements Spool,contact us first when you get some problem, we will offer you assistance asap Description