Features: Our trimmer spool are suitable for multiple 20V string trimmer models for: WG150, WG150.1, WG150.2, WG150.9, WG151, WG151.5, WG152, WG153, WG154, WG155, WG155.5, WG156, WG157, WG160, WG160.1, WG160.2, WG160.3, WG163, WG163.9, WG165, WG166, WG167, WG170, WG170.1, WG175, WG180. 4pcs replacement Strimmers wire. 10ft/300cm flexible spool line, and with a diameter of 1.65 millimeters, this spool can be quickly cut and chopped. The Strimmers line is ABS spool nylon thread. When using the lawnmower, it can keep stable, wear resistant Do no additional tool are required, simply remove the old spool line and replace it with a new one to complete the installation, keeping your grass trimmer in good condition. Superior to standard circular lines, and its improved cutting action helps to keep cleaner. Specifications: Component:ABS Dia:Approx.4.2cm/1.65inch Package Includes: 1 Set Trimmer Line note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.