Have you ever made a hollow form and then tried to bump out the clay, only to find that you just can’t reach your arm or your knuckle to the sweet spot? You need The Bump! The Bump is designed to extend the potter’s reach up to 18 inches when working in a hollow form: giving you the leverage you need to bump out, alter or heal seams in the clay. The aluminum rod is stiff but can be altered to suit your individual need for throwing or sculpting clay. We can ship it to you straight or we can set an S curve. (See photos) The sponge end is a dense, chamois like, material with a hard center.