This Challenge coin holder is designed to proudly showcase U.S. Marine’s coins depicting the bravery and the strength of the men and women fighting for our country. Easily assembled with Black firearm type decorative screws using a hex key, (included). Each stand is laser cut from glazing quality acrylic with laser etched metallic decoration engraving represents the united states marine corps It will display coins from 1 3/4″ to 2 ” diameter and up to 3/16″ thick 2 “coin to 1 ¾ “coin Adapter Ring included (1 5/8 inch also fits see Photo) Ships flat ideal for mailing overseas. (About 3″x3″x3/4″ not including the envelope) Overall demotions: Height: 25/8″ Width: 2 1/2″ Depth: 1 7/8″ Large (coin) opining: 2 1/32” Small (coin) opining: 1 25/32