Miracle Eraser® Strip 'N Sand™ - Paint, Varnish, and Rust Remover for Wood and Metal - 18 Pack (Case of 4)Miracle Eraser Strip 'N Sand Paint Remover Blocks are lightweight sanding and paint stripping blocks made of a specially formulated sand baked into block form. They are used to lift off and remove latex, oil, acrylic, and water based paint and varnish from wood, metal, and other hard surfaces. Similar to a pumice stone, but much lighter, they are uniquely superior to traditional paint removal products. During the stripping and sanding process, the