Material: sponge and carborundum, this sanding block can be used both wet and dry. A good helper to remove kitchen rust. Product features: The sponge is soft and does not hurt the hands, adapts perfectly to the workpiece, and a waterproof carborundum coating to ensure effective staining. Easy to use: moisten the dust eraser, rub the contaminated area with light pressure and the dirt will disappear. Since the sponge works like an eraser, it wears out, this special method has a good cleaning effect. Be careful: easy to clean, durable and easy to grip kitchen utensils, ideal for brushing pots and removing rust, etc. Not suitable for non-stick pans or items with high surface smoothness requirements. Widely Used: Can be used on wood, glass, paint, metal, plastic, porcelain or drywall. can grind any irregular geometric curved surface. Product Information: Easy to handle different surface shapes and materials. The foam layer of the abrasive sponges provides good grip. to adapt contours, corners and curves. Due to the firm adhesion of the abrasive grains, which increases the service life of the abrasive sponges. Easy to clean kitchen utensils, ideal for bowl brushed, rustproof etc. Material: sponge and carborundum Color: brown Single weight: 16g Size: 10x7x2.5cm Quantity: 4 pieces