External dimension: 209mm by 149mm by 70mm Box

Internal dimension: 203mm by 146,5mm by 64mm volume

Dimension varies across printers, scale up or down according to your printing accurarcy. 

It can either hold things or 75 mahjong tiles (5*5*3) in each box. I printed in tpu for max layer strength.

Mahjong tile of 40mm by 29mm by 20mm 

For use in aluminium box of 31cm by 22cm by 8cm