Norton Premium 5X Sanding Small Area Sponges sand five times (5X) faster than sandpaper, thanks to new technology. Available in 36, 60, 120, 180, and 220 grits, these sponges, featuring a block style design, will handle inside angles, contours, curves and the roughest sanding jobs. With new anti-clogging technology, you can sand in either wet or dry applications, so from metal, wood to fine wet-sanded finishes, these sponges can tackle almost any job. The exterior of the sponge is resistant to tearing, and the whole sponge life is extended by just rinsing in water, drying and reusing.