100 Pack Replacement Blades Compatible with Ryobi RAC155, RAC157, RAC158 Trimmer Heads

English: Material: Plastic, Length: 66mm. Suitable for grass and thin bushes, not for young trees or other hard materials. For best results, avoid using this attachment for trimming edges, working on bricks, or welded chains. Compatible with RYOBI RAC155 and RAC157 brush cutters. [NOTE ON REPLACEMENT BLADE] The blades are made of PA6 (nylon). Soak them in water overnight before use to prolong their life. Quantity: 100 replacement blades for RAC158, which are an excellent replacement for the original blades.