Common 2 ounce Silver Round. This holder is identical to the X3 holder, with one exception. The interior diameter is slightly larger, measuring in at 1.875 inches, or 47.63mm, for common 2 oz rounds. Each pack contains one acrylic holder with base and lid separated vertically in clam shell on red peg-hole card. Air Tite#: X6. Size: 1.875x.156. Color: Clear. 10 Per Pack. Sold in less than Pack Qty.. Case Qty: 10 .