For r-yobi 18v trimmer Replacement Blades crafted from Polycarbonate Material for Added Sharpness, ideal for Trimming Smooth Tender Grass and Weeds.Catering to different work scenarios, significantly boosting productivity. The upgraded version of the ACFHRL2 trimmer blade reduces the cumbersome installation process and is easy to install.Trimmer Head fixed dual blades don't worry about getting stuck during installation.Simply push this trimmer head into the stringer socket and it automatically locks in place with assistance from the side push buttons. Avoid using this accessory for edging, working alongside brick, chain, or wooden fencing. FITMENT: ACFHRL2 Polycarbonate blades head compatible with R-yobi 18V Hybrid 24V 40V Ry40210,Ry40210a, for R-YOBI 18V Auto-Feed String Trimmers: P2080, P2008A, P2008, P20100, P20010A, P20010, P2210, P2210CAN, P2200A, P2200ACV, P2200, P2030, P2031, P2003A, P2003, P2060A, P2060, P2006A, P2006, P2052, P2051, P2050, P2005, P2040, P2041, P2004, P20102, P2102BTL, P20120, P20103.Be sure to choose the correct replacement accessories for your lawn mower model to ensure proper installation and use