Our Neptune simple capped cornerstone time capsule box measures a full 12x12x24" on the inside. The standard cap measures 12x12". This time capsule box has a capacity of 3456 cubic inches or 2 cubic feet. Although dependent on the actual size of your items, the Neptune size holds up to about 425 standard document type items.
Your capped cornerstone order includes the following items at no additional charge. For more supplies to protect items, order a preservation kit or separate packages appropriate to your items.