This sponge is made of high-quality aluminium oxide, ensuring durability and efficiency. The sponge comes in a pack of 6 or 12, with a length of 120mm, height of 13mm, and width of 98mm. The sponge is available in a coarse, medium, and fine grit, making it suitable for a range of projects. It is perfect for both wet and dry sanding, and has a weight of only 10g. Get your hands on this reliable and efficient sanding sponge for your DIY and workshop needs.