If you are looking for a professional and rubber abrasive brush disc, then your research is over here. That's because our product can meet your need. Adopted of , it is practical and durable for long time use. It is not easy to get deformed and bring you much convenience. Features -Color: Assorted Color -Material: emery, rubber -Size: 5.00X5.00X4.00cm/1.97X1.97X1.57in - The yellow 80 grade bristle grinding disc and the green 50 grade bristle grinding disc can be applied to hard metals such as steel. - The white 120 grade bristle grinding disc is suitable for metals such as aluminum. - bristles requires less force, which can save cleaning time and labor. - Bristle disc grit has a large contact area with the object, which can bring you an efficient cleaning effect. - This bristle grinding disc can be used with most multi-function tools, including electric drills, rotary tools and micro grinders; the rotation of the rotary tools is within 15000-25000 . Package list: 2 x 80 grit 2 x 120 grit