A unique flexible sanding product. These high-quality abrasive coated sponges conform to almost any contour or surface. They will last much longer than traditional sanding sheets and can be washed and reused. These sponges can be used on gold, platinum, sterling silver, brass, copper, etc. They are excellent for all stages of sanding and prepolish. Try this product for model-making and lapidary applications. Sold individually.