Compatibility: compatible with several models of trimmers: WG150, WG151, WG151.5, WG152, WG153, WG154, WG155, WG155.5, WG156, WG157, WG160, WG160.1, WG160.2, WG163, WG165, WG175, WG180.Haute Efficiency: Adop an oval-shaped spiral mowing line, reduce grass contact resistance and improve mowing efficiency. Bendable and flexible allowing the line to stretch and cushion impact with hard surfaces. Sturdy and durable: Replacement clipper spool line made of premium nylon and ABS material, the orange spool cover snaps into place. perfectly fits the lawn mower. Compatible with original coil models WA0010 and model WA6531 GT cap covers.Easy to use: installs by snapping in place for quick and easy replacement without tools. Uses centrifugal force to feed the trimmer line as needed, reducing the tedious work of manually winding the spool.Specification: 6 spare cutting line spools, 2 spare caps. Cutting line 3.05m, line diameter 1.65mm, enough to meet your daily needs. Note: The data are all manual measurement, please allow 1-3cm error, in Due to the light and display difference, there will be some color difference, depending on the physical item received.