This 40 Pcs Polishing Wheels set provides a high-quality, gentle polishing experience for rotary tools. The polishing heads are made of soft cotton and equipped with 120 grit, allowing precise polishing of various materials. Whether polishing metal items like knives, watches, and bolts, or wood and jade, this set ensures smooth and shiny results. Each polishing head has a 2.35MM shank, compatible with dremel tools and most rotary tools. With 40 pieces, it's perfect for both professionals and hobbyists, offering long-lasting performance for polishing metal, wood, and jade items. These polishing wheels are essential rotary tool accessories, providing an effective polishing kit that ensures great results for all your projects. Use them with polishing compounds and buffing wheels to achieve the desired finish on your projects.