The trimmer replacement spool Suitable for Multiple String Trimmer Models: WG150, WG151, WG151.5, WG152, WG153, WG154, WG155, WG155.5, WG156, WG157, WG160, WG160.1, WG160.2, WG163, WG165, WG175, WG180. Package contains 20 packs WA0010 replacement spools 0.065 inch; 10ft/pack, 4 packs WA6531 spool cap covers.wa0010 trimmer spool, 10ft 0.065 inches, compatible with original spools models WA0010 and cap covers models WA6531 GT. WA0010 Replacement Trimmer Spool is compatible with for string trimmer and utilizes centrifugal force to feed the trimmer line as it is needed. The auto feed system replacement spool eases the tedious work of hand-winding spools. High-quality spool andamp polyamide nylon thread, flexible and long service life. Use centrifugal force and aerodynamics to reduce drag and achieve fast cutting.Each replacement spool comes pre-wound and may be replaced easily in a few seconds. Color: orange material: plastic Package Contents: 20 x Grass Trimmer Line 4 x Trimmer Cap Only the above package content, other products are not included. Note: Light reflection 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.