Soft Density Interface Pads Hook and Loop Sponge Cushion Buffer Backing Pad. Side is hook face, can stick with sanding discs, another side is loop face, can stick with sanding pads. Constructed of soft durable sponge which allows the technician to follow contours and get closer to edges while minimizing burn through. Reduce vibration from orbital sanding tool for improved results. Add support to sanding pad, improve abrasive cut and closer edge sanding, protection against damage to it. Item Type: Soft Density Interface Pad Size: Diameter 50mm/2.0 inches, Diameter 75mm/3.0 inches Colour:white+black Material:sponge Package Contents: 100x Interface Pads(50mm) / 10x Interface Pads(75mm) 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.