The QUADRUM system has been an integral part of coin collections around the world for many years. Collectors appreciate being able to store their coins easily and presenting them in an aesthetically pleasing manner. Leuchtturm has now developed a clever innovation that will make life easier for all avid coin collectors in dealing with capsules: the QUADRUM capsule comprises rings in different sizes, meaning that the capsule is easy to adjust to house coins with diameters of between 16 and 41 millimetres. Consequently, collectors no longer need to buy QUADRUM capsules in varying diameters. The coins have been chosen for coin diameters most commonly used. The widely popular QUADRUM system ensures maximum flexibility as well as proven quality and security for all collectors.