Features Transparent acrylic scale sheet with round corners to avoid scratching clear scale easy to useThis is a u shaped clear acrylic with scale used to flatten and rub clay into perfect shapesUses This press mud board really works You can rub out even mud strip and beads and you can press the mud and take it as a pad or the seal handleHow to use Place the clay between the two acrylic plates Press the upper acrylic plate downwards to press out a uniform and smooth piece of clay You can also move the upper piece of acrylic sheet back and forth to get a uniform long stripe Specification Material ArylicSize 125 100 4mmApplication all kinds of clay Package includes 1 U shaped Clay Press Plate