Long and lean, the Large Platter Rib (black-Extra firm) is designed to give good compression when you are making plates and platters enabling you to properly compress the clay and avoid those cracks that sometimes develop. They are made with a stiff polymer, but still offer some flexibility. All of the polymer ribs are made of unique flexible materials that are resistant to cracking and the formation of burrs. It’s found that with general use these ribs become burnished over time. Whether you are throwing clay on the wheel, hand building or sculpting, the pottery rib is a classic and essential tool. It acts as an extension of the potters hand to create shapes and surfaces that fingers alone can not achieve. Mudtools believe their tools should not only function well, but should be pleasant to look at and a joy to use….