Quadrum 37mm Coin Capsule
The identical outer dimensions of the square capsules allow coins of different sizes to be stored in a single collectors system. Square coin capsules are made from high-quality, scratch-resistant plastic. Secure yet easy-to-open locking. Capsules include precise-fit black insert for all the most common coin sizes.
Two pieces snap together with foam insert to provide long term protection.
Fits a variety of different coins, but most notably, 1 Ounce Gold & Silver Philharmonics