16.5mm Direct Fit Bulk Holder for Tenth-Ounce Gold Eagles with small size exterior diameter coin capsules. Guardhouse Direct-Fit round holders are made of a virgin styrene acrylic polymer. This high quality material ensures long-term crystal clear clarity. The interior of the direct fit round coin capsule will hold a dime snugly in a sealed chamber, but is also designed so that you can remove the contents if necessary. The exterior dimensions are measured to industry standards for coin boxes and holders.