PCGS slab boxes are formed from a black injection molded plastic These boxes store 20 PCGS certified coin slabs each Premier certified style coin holders also fit in these boxes The exterior measures approximately 9" x 2.75" x 3.5" when closed. No coins or bullion included with this item PCGS slab boxes are formed from a black injection molded plastic. The inside of the box is fitted with rails along each side to keep slabs organized and separate.The lid snaps shut. The top of the lid has posts which fit the notches on the bottom of the box for secure stacking of multiple boxes.