Kirkland External Ring Clamp Silver Metals As with all magnetic clasps

As with all magnetic clasps used in fine jewelry

These are genuine Meiji lenses compatible with Meiji and OttoSetters microscopes

Hardened steel construction for durability and resistance to deformation

Pressure-sensitive adhesive (PSA) backing for secure

Kirkland External Ring Clamp Silver Metals As with all magnetic claspsThe Kirkland External Ring Clamp holds rings from the outside using leather lined jaws, giving jewelers and metalsmiths secure, protected access to interior ring surfaces for filing, sanding, and polishing. Designed to accommodate virtually any ring shape, it is an essential bench tool for stone setting and finishing work. Features Leather lined jaws clamp rings from the outside, protecting ring surfaces while allowing full access to the interior