Quality material: coin capsules are made of transparent and thickening plastic material, smooth to touch, dust-proof and resistance to oxidation can hold 60 pieces not bigger than 41 mm coins, commemorative coinsCapsule measurements: clear round coin holder inside diameter is 41 mm, outside diameter is 45.7 mm, and the storage box size is approx. 19.3 x 10 x 5 cm, great for protecting your coin case capsules, keep them sorted and organizedCrescent opening design: each round coin case has a crescent opening in the outside rim, more effortless to open, making it convenient to use The base and the lid snap together tightly to protect inside contents safelySuitable for coin collectors: fit for 1 oz American Silver Eagle dollar, commemorative gold 50 dollar, 1 oz Silver Panda, 1 oz silver Australian coins (Kangaroo, Koala, Crocodile, etc), 1 oz Panda-Sterling, 1 oz Silver Britannia (1998-2012), 1 oz Silver Fiji Taku (Hawksbill Turtle), 1 oz Silver Libertad, 100 Peso and 5 Peso SilverGreat gift: clear coin containers conduce to coin storage, view and exchange, portable and easy to carry, great gift for coin collectors to protect and store his/ her favorite coins