Companion cube double deck box 2 x d20 dice

Credit to http://www.thingiverse.com/Archimiedies for the design.

Original design at http://www.thingiverse.com/thing:137623.

My modification:
The deckbox is modified to hold 2 x 20 sided dice, and holds them close to the lid so that they are kept in place. Made to fit the standard size, of store bought, 20 sided dice.

Update:
Made a holder for the dice. it holds 10 x 16mm x 16mm x 16mm, 6 sided, dice.

Fits 75+ sleeved cards.