Round brush 150x25.4mm. Head diameter: about 150mm; Bore: 25.4mm. The cutter head is versatile and universal, it is suitable for 99% of straight shaft scrubbers on the market. Excellent Gardening Tool: This lawn mower head uses twisted steel wires and was specially designed for gardening. Effectively removes all moss and messy grass in your lawn, garden and sidewalks, especially for brick roads, pavers and sidewalks, making your garden cleaner and more beautiful. Multi-function: This round steel wire brush can also be a kind of cleaning and polishing tools for deburring, weld cleaning, rust removal, dust removal and elimination of oxidation. (Perfect surface treatment. For deep work we recommend using a soft weed brush). Easy Installation: Comes with 1 set of installation tools: pressure disc, end plate, lock nut, screwdriver. Easy to install, just place our brush cutter head over the top screws of your straight wave cut and secure it with the seal and the nut. Superior rotational