(1) Airtite Coin Holder Storage Container & (20) White Ring 20mm Air-tite Coin Holder Capsules for 1/4oz Gold Maple Leaf and Shield Nickels Capsule Measurements: Inside Diameter 20mm x 2.03mm Depth, Outside Diameter 36.5mm x 5.1mm Depth Tube Measurements: Inside Diameter 36.7mm x Height 4-1/4 inches Rings are placed inside the capsule Capsules are shipped Un-Assembled between layers of foam Coins that Fit: Shield Nickels, Gold $2 1/2 (1796-1828), $3 Gold, 1/4oz Gold Nugget, $2.00 Australian, 1/4oz Lunar Gold Series 1, 1/10oz Silver Koala, 1 Ducat, British Farthing, 1/4oz Gold Maple Leaf, 2 Reichsptennig, 1/10oz Silver Libertad, 1/4oz Noah's Ark, and 1 Ruble