A necessity for the jewelers bench as well as for the hobbyist or craft person. The clamp adjusts from 1/2" to 2-1/4" to accommodate most workbench thicknesses. Size: 2/0. Quantity: 24 pieces. Ring Clamp: This 6" high-quality wooden ring clamp features leather jaws for holding rings and other objects while filing, mounting, etc.
eBay