Upgraded collets - type that lock in and do not spin. 19 collets total - Holds rings from size 3 to 14. The item "GRS BenchMate Inside Ring Holder with 19 collets, extender and sliding stand" is in sale since Monday, August 5, 2019. This item is in the category "Jewelry & Watches\Jewelry Design & Repair\Jewelry Tools\Engraving Tools". The seller is "choicejewelers" and is located in Colorado Springs, Colorado.This item can be shipped to United States.