Compatible Models: Coil Model: F016800569/F016800385, Cap Cover Model: F016F04557, Compatible with Bosch EasyGrassCut 23, EasyGrassCut 26, EasyGrassCut 18, 18-230, 18-260, 18-26. High Quality: Durable ABS spool. polyamide nylon thread, flexible. The aerodynamic shape allows less drag for more efficient cuts. With the automatic feeding system, the spare spool facilitates the tedious work of manual winding spools. The 4.9m spool length provides a wider mowing range. Easy to use and install: release a cap. Automatic winding allows you to quickly make spool changes, saving you time and effort. This cordless weed killer parts refill is only suitable for young weeds. Strong weeds use other tools such as blades to cut. Easy to install: 1. Turn off the trimmer and remove the spool cap.2. Replace the spool in the cutting head.3. Snap the line into the slot and align it with the retainer.4. Cover Cap.Material:ABS,NylonColor:Black Package Content:10 x String Trimmer Spool Line2 x Cap CoverOnly the above package content, other products are not included. a little different from reality. The measurement allowed error is +/- 1-3cm.