The Quadrum squared coin capsule system is an efficient way of storing different coins with different diameters in a single collector's system. The outer dimension of all capsules are 50 mm x 50 mm with the inner diameter available in different sizes.
The Quadrum coin capsules are made from high-quality, scratch-resistant acrylic. They are secure, yet easy to open.
The capsules are available with different inner size diameter. All capsules include the precisely fit black insert.