Used replacement head guard assembly.
The RYOBI 18V String Trimmer Replacement Guard Assembly 205779001 P20018 is a modern, cordless trimmer part designed by Ryobi for their P20018 18v Cordless String Trimmer model. This green guard assembly is powered by an 18V battery and comes with the necessary components for assembly. Made in the United States, this replacement guard assembly is ideal for maintaining and repairing your Ryobi trimmer to keep your yard and garden looking neat and well-manicured.