Specifications:Material: High quality abrasive cloth Grit: 80 Disc diameter: 2"/50mmInner Hole Diameter: 0.4"/10mmPackage include:5pcs blue flap discs and 5pcs brown flap discsFeaturesExcellent for polishing, sanding, grinding and finishing. - With small, good polishing effect, high efficiency, durable and practical. - Cleans burrs and threads for ferrous and non-ferrous metal. - Suitable for stainless steel surface cleaning, derusting, grinding, dusting, deburring, polishing, stripping residua.Note:1.Please allow 1-5mm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! 3.You can test it on a small area first before applying it on alarge area.