These traditional kidney-shaped ribs are the most universally recognized pottery tool. They fit well in the hand and are useful for sculpting, hand building and throwing clay. The Shape 1 Polymer Ribs are Mudtools best seller. You need one in your toolbox. Really, you do.

All Mudtools polymer pottery ribs are made of a unique flexible material that will not develop burrs or cracks under normal use. We’ve found that over time the rib becomes even more polished. Each polymer shape is available in a variety of hardness. 

Red- Very Soft
Yellow- Soft
Green- Medium
Blue- Firm