This is a 4‑tooth brush cutter blade made of high‑carbon steel with a blue anti‑rust coating. It measures 255mm in diameter with a 25.4mm (1 inch) center hole, fitting most standard gas‑powered grass trimmers and brush cutters. Designed for balanced, low‑vibration cutting, it works great on thick grass, weeds and reeds, ideal for large‑area garden and farm maintenance.