Compatible with Flymo trimmer spool and line. Alternative to part number - FLY021 /513937190. Manufactured from high quality materials to ensure a high performance product. FLY021 fits the following models - for Contour, Contour XT, Contour 500, Contour 500 Power Plus, Contour 500XT, Contour 700, Contour 700 Power Plus, CTXT25, EIT23, EIT250, EIT300, ET23, ET23DX, ET23+DX, ET25+DX, MET230 Twin, Minitrim Auto 2003, Mini Trim Auto ST, Mini Trim Auto XT, Mini Trim Auto Plus XT, Minitrim Auto Plus, Mini Trim Contour XT, Multi Trim 250D, Multi Trim 250DX, Multi Trim 300DX, Multi Trim 250 Plus Twin, Multi Trim 300 Twin, Power Trim 300, Power Trim 500 (product no: 9648596-25 /62), Power Trim 500 XT, Power Trim 700 (product no: 9648597-25 /62), Power Trim PWT23, Revolution 2000 (twin line), Revolution 2300 (twin line), Revolution 2500 (twin line), PTXT25, SET250, SET300, STXT25, Speedi Trim, TwistnEdge. Color: grey+red. Material: ABS, nylon. Package contents: 6 * Trimmer spool line. Only 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.