General description Compatible with several Ryobi One + trimmer models: 18V, 24V, 40V. This high-quality trimmer line features a 1.65 mm diameter and a length of 3.4 m, making it effective for cutting grass and weeds. The Auto Feed System replacement spool eliminates the need for manual winding, saving you time and effort. The package includes 12 packs of 1.65 mm replacement clipper spools and 3 clipper caps. Technical specifications Diameter: 1.65 mm Length: 3.4 m Other information