Compatible with for Craftsman spools models CMZST065 CMZST0653, MCST900 Spool, CMCST910 Spool, CMESTA900 Spool, CMESTE920 Spool, CMZST065 Replacement Spool , CMZST0653 Trimmer Spool.Fits String Trimmer models: CMCST900, CMCST910 CMESTA900, CMESTE920 CMCST98020 series string trimmers.30-feet replacement line is factory wound for a superior feed,Premium 0.065-Inch diameter wearable line supports fast cutting and longer lifetime,High-quality ABS spool durable polyamide nylon thread, flexible and long service life. Use centrifugal force and aerodynamics to reduce drag and achieve fast cutting.Pre-wound, ready to go: Each replacement spool comes pre-wound and may be replaced easily in a few seconds. It is very easy to assemble and remove, you can snap it into the right place and then assemble them quickly and easily just by hands, no need other tools.Precautions for use: Wear safety goggles and long pants when using this product to avoid injury from spilling lines. This cordless weed eater parts refill is only suitable for young grasses. Strong weeds use other tools such as blades to trim.Material:ABS, nyloncolour:As ShownPackage Contents:8 x String Trimmer Spool LineOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.