3D-printed building block (that doesn't need supports and is lightweight !). .
You can stack, or "attach", other blocks by matching 'Lozenge' faces or the flat unique face created by the cut. .
Perfectly stackable (after applying some rotations and some glue or other technics). .
Cutted in *Half means that you can use it as the first step of your "building" for flat surfaces. .
You can turn each block on all axis and imagine what you can do with a lot of them !... ;P .