ribs. (Please scroll down for more information.) Back to the Home page. Back to The Tools page. View Cart MKM Professional Series Rigid Stainless Steel Ribs. Selection of ribs: View... at a sharper angle. To avoid chatter with wood or steel ribs, re-wet the clay surface. Feel free to attach these ribs to your MKM Ultimate Throwing Sticks. They work great. S2c L: 6 in. W... rib provides different corner radius's. Each corner of the rib has a different radius. It is also small enough to be attached to the MKM Ultimate Throwing Stick. top S6 L: 4 1/8...