Aluminum Clamp Solid Wood Handle Custom Fit Storage Box Non-marring Nylon Sleeves Ring Sizes 2-13 Premium Quality The Ring Setters Clamp Set features an extremely well-made, machined metal clamp with 9 nylon split collet inserts, and a comfortable wood handle. It will hold rings from sizes 2 to13. It is perfect for holding rings while setting stones, polishing, beading, etc. It also includes a hardwood box with a hinged cover. The box is clearly marked with U.S. ring sizes (2-13) and millimeter equivalents (13mm - 22mm). The handle can be unscrewed from the head so that the tool can be installed in our Bench vice for hands-free operation.