: 1. Replacement spool is suitable for multiple cordless trimmers models, such as for 18/24/40V Weeder Cordless Trimmer 2. Spool line utilizes centrifugal force and aerodynamics to reduce drag and achieve fast cutting. 3. CNC machine cutting and winding, save time from cumbersome manual winding, reduce damage for string trimmer and not get stuck during cutting grass. 4. The edger spool line were made of premium quality material, ABS spool sturdy enough, nylon line string flexible, strong enough for long working life. 5. Strong centrifugal force and cutting fast during using,recommend to wear eye protection and long pants to avoid unnecessary injury. Specification: Item Type: Trimmer Spool Line Material: ABS+Nylon Color: As shown in the picture Product Size: Approx. 5.6x2.2cm / 2.2x0.9in Weight: Approx. 154g / 5.4oz Application: Fit for Ryobi 18/24/40v Compatible Models: for Ryobi One Plus lawn mower, suitable for 18V 24V 40V electric lawn mower. For Ryobi 18 V 24 V 40 V lawn mowers/mowers: for P2000, P2002, P2003, P2004, P2004. 5, P2006, P2006a, P2200, RY24200, RY24021, RY40021, RY40200. Package List: 6 x Trimmer Spool Line Compatible with multiple cordless trimmer models, including Ryobi 18/24/40V Weeder Cordless Trimmer. Utilizes centrifugal force and aerodynamics for fast cutting, reducing drag and enhancing efficiency. CNC machine cutting and winding saves time by eliminating manual winding and prevents string trimmer damage and tangling. Made from premium quality materials, with a sturdy ABS spool and flexible nylon line for long-lasting durability. Strong centrifugal force ensures fast cutting, making eye protection and long pants highly recommended for safety.