1. Durable and practical 2. With small, good polishing effect, high efficiency, low cost. 3. Widely used in the micro- electronic devices, and other industries. 4. Fit for your polishing need,can use for metal and nonmetal materials. 5. Suitable for metal surface cleaning, derusting, grinding, dusting, deburring, polishing, stripping residue Description: 1. Material:Scouring pad 2. Color:5 pcs Yellow 3. Diameter of Shank:3mm/0.12'' 4. Diameter of Brush:25mm/0.98'' 5. Length:45mm/1.77''