High Impact ABS material provides strength & durability.No needed to install.Snaps in place over spool line.Snaps into place quickly & easily without the need for for efficient spool replacement.Protects your line and keep it in place on your string trimmer.Solid and durable, long service life.Easy to install and reliable to use.Fitment:For GLC12 GL250 GL310 GL360Similar To Part No's: 682378-02Colour:blackMaterial:ABSSize:68mmPackage Contents:4 x Spool Cover Cap with Only the above package content, other products are not included.Note: Light 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.