Speedy-Carve blocks from Speedball are a revolutionary, pink eraser-like material that makes lino carving a breeze! Flexible and durable, it will not crack, crumble or break. Great for stamping as it holds fine line detail. Great for use with either water-soluble or oil-based block printing inks. Easily transfers images from ink jet printers and newspapers, too! Latex-free, 1/4" thick.