The Aluminum Frame Storage Box Case with Lock is built with sturdy materials, this sleek box is crafted with attractive exterior fittings and reinforced corners. This case is NOT for NGC, PCGS certified slabs. This storage box can hold 100 coin holders with outside diameter up to 52mm (Can fit all kinds of silver dollars with plastic holder such as 1 oz eagle silver dollar, Morgan dollar, 1 oz silver or copper dollar). The size of this case is 15" x 13" x 4." This listing is for the box only, no coins or holders are included.