3M Scotch-Brite 64660 Durable Flex Hand Pads, MX-HP, SiC Ultra Fine, Gray, 4-1/2 in x 9 in, 25 Pads. Scotch-Brite Durable Flex Hand Pads are also referred to as Abrasive hand pads, Non-woven hand pads, Scotch-Brite hand pads, Multi-purpose hand pads, Finishing pads, Sanding pads, and Ultra fine hand pads.