Aluminum Storage Box for 10 Universal Coin Slab Holders This box stores 10 slabs of any type- NGC, newer ANACS, ICG, PCGS, and Coin World. The exterior measures of this box approximately 6" x 3.25" x 4" when closed. Each order is for a one box and lid. Coins and holders are NOT included. Aluminum storage box for 25 universal coin slab holders pictured above.