(15) Air-tite 36mm Black Ring Coin Holder Capsules for Canadian One Dollar and 1/2oz Silver Koala Measurements: Inside Diameter 36mm x Depth 2.92mm, Outside Diameter 51.59mm x 5.7mm Genuine Air-Tite Holder Brand Capsules Rings are placed inside the capsule Capsules are shipped Un-Assembled between layers of foam Coins that Fit: Canadian One Dollar (1935-1967), 1/2oz Silver Koala, and 1/2oz Silver Lunar (Series 1)