This ring setter's clamp set features three head configurations to help you hold rings securely while setting stones in vertical, horizontal or angled positions. This set includes a handle (5-3/4"L) and 10 nylon split-collet inserts that accommodate U.S. ring sizes 2 to 14 (13-23mm ID). All components are neatly fitted into a convenient organizer box. Includes installation diagrams and an Allen wrench (hex key). A short Allen-head bolt is also included that allows you to replace the thumb-wheel on the vertical positioning head, giving you improved access to rings when you need it.