Developed in conjunction with a professional marble maker. His dream for the perfect marble finishing tool was for one that would work through all temperature ranges, have replaceable rings and provide a superior finish.  Also he said he was tired of burning himself on the metal marble ring he was using. After using Leviathan GlassWorks madrone blocks, he thought that madrone wood might be the answer. He contacted Iven and they built a tool that exceeded expectations. The biggest fear was that the wood would burnout quickly, that did not happen.