Sponge grinding block roll is a versatile tool for grinding, polishing, and sanding a wide range of surfaces. These rollers are made of high-quality sponge material that conforms to the surface for an even and consistent finish. They are perfect for both wet and dry applications, and can be used with a variety of different polishing and grinding compounds. They are easy to cut to the desired size and shape, making them suitable for a wide range of projects. These sponge grinding block rolls are perfect for use in metal utensil cleaning, metalworking and woodworking.How to use: Please wet the pot or kitchenware and sponge before using. Add some detergent for better effect. Precautions As the sponge is ABRASIVE in nature, it is NOT recommended for cleaning of smooth surfaces. There are chances of SCRATCHES.