Do it Jumbo Fine 180-Grit Sanding Sponges, 3-Pack feature aluminum oxide abrasive that is for smoothing wood, metal, plastic, drywall, and painted surfaces. These sanding sponges are designed to conform to various surface contours, making them versatile for different sanding tasks. They can be rinsed clean and reused, providing lasting value. Each sponge measures 4-1/2" by 5-1/2", and the pack includes three sponges to meet your sanding needs. Model Number: 380148