Enough quantity compatible with using or replacement, working as practical tools.Compatible with model: F016800569 / F016800385 spool line, which is compatible with ART 23SL and ART 26SL, please do check the model carefully becompatible withe purchasing to make sure its the right fitting you need.Work more efficiently: these replacement lines are easy to install and flexible to use, which can use centrifugal compatible withce and aerodynamics to ease the tedious work of hand-winding spools, making you work more efficiently.Warm tip: strong centrifugal compatible withce and cutting fast during using, please wear eye protection and long pants to avoid unnecessary injury.Reliable material: High-quality ABS spool durable polyamide nylon thread, flexible and long service life.Colour: BlackMaterial: ABS, NylonPackage Contents:4 * Spool line1 * Spool coverOnly 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.