Adjustable opening Brass Caliper Stand. Perfect to display many different gemstones shapes such as: specimens, spheres, hearts and free forms. They come with rubber pads on the inside screw tips and are solid brass.5" to 2.25" opening. Weight: 0.200 lbs (90.7 g). The item "Gold Plated Caliper Stand Fossil Specimen Mineral Display AU5" is in sale since Thursday, March 17, 2016. This item is in the category "Home & Garden\Home Décor\Display Easels". The seller is "naturedesigns" and is located in San Francisco, California. This item can be shipped worldwide.