Packaging List: You receive 12 pieces of 2-inch yellow drill gear disc with 1/4-inch handle attachment, which is enough to give you more grit options Gravel for needs: White 120# abrasive bristle discs can be used for soft metals such as aluminum; Yellow 80# abrasive bristle discs and green 50# abrasive bristle discs are ideal for hard metals such as steel; various gravel satisfy yourDifferent needs Save time: Flexible bristles require less force than wire brushes, which cleaning time and electricity; the bristle disc particles provide a large area of contact with objects, allowing you to clean efficiently and maintain abrasion throughout the life of the discperformance Multifunctional application: These bristle disc packs are practical tools that can more effectively remove burrs, polish, clean, and remove stubborn coatings Widely compatible: The gasket removal tray can be used with most multi-function tools, including electric drills, rotary tools and mini grinders; the rotary tools have speeds of less than 15000 - 25000 rpm Colour:As Shown Material:Metal Package Contents: 1 set * 3 meters bristle disc Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.