It’s a set of LEGO compatible baseplates, with two plate dimensions: 10×10 pins (80×80 mm) and 20×20 pins (160×160 mm)
They are designed to fit with regular LEGO bricks in order to create a martian terrain scenery.
Thing on thingiverse: http://www.thingiverse.com/thing:2065782
Google plus photo album: https://goo.gl/photos/Mdvz5QRDDY53t3bM7
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