Fits model: Our string trimmer replacement spools are compatible with compatible with CRAFTSMAN-CMZST065 & CMZST0653.String trimmer line: Premium about 30ft in length and 0.065inch in diameter. String Trimmer Spool Line easily cuts through grass and weeds. Llows less drag compatible with more efficient cuts. Pliable and flexible allowing compatible with the line to stretch and cushion on impact with hard surfaces.Auto feed grass trimmer spool line: High-quality ABS spool & durable polyamide nylon thread, flexible and long service life. The trimmer replacement spool utilizes centrifugal compatible withce and aerodynamics to reduce drag, Achieve fast cutting and utilizes centrifugal compatible withce to feed the trimmer line as it is needed. The auto feed system replacement spool eases the tedious work of hand-winding spools.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 compatible with 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 compatible with young grasses. Strong weeds use other tools such as blades to trim.Colour: as shownMaterial: ABS, NylonPackage Contents:12 * Replacement trimmer line spool1 * Replacement spool cap cover1 * Replacement springOnly 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.