Gator 3-Inch x 4-Inch x 1-Inch Multi-Surface Sanding Sponge Fine Grit 2 pack: Some sanding projects require a more flexible option. Gator sanding pads are the right choice. The thinner more flexible designs make these pads easier to use in tight spaces or for curves and contours. They are ideal for use on drywall fiberglass metal wood and painted surfaces. The thin flexible design is perfect for sanding irregular shapes contours and grooves