Blue Dolphin P-Flex Sanding Sponges offer the same high quality abrasives available in their sheets in an easier to use format. P-Flex Sanding Sponges are easy to hold, and are super flexible. These sponges work well on both flat and curved surfaces and handle wet and dry sanding. Great for surfaces such as wood, metal, paint, ceramics, and drywall. Available in an array of grits for any stage of your project.