High Impact ABS material provides strength & durability. No tools needed to install. Snaps in place over spool line. Snaps into place quickly & easily without the need for tools for efficient spool replacement. Protects your line and keep it in place on your string trimmer. Solid and , long service life. Easy to install and reliable to use. Fitment:For Black & GLC12 GL250 GL310 GL360 Similar To Part No's: 682378-02 Colour:black Material:ABS Size:68mm Package Contents: 4 x Spool Cover Cap with spring 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.