This fun model by MEiniatures is called the Eternity Shatterer. It is a full sized cosplay hammer coming in at just over 28 inches tall, and having a hammer that is 12.5 inches from the front of the head to the back of the claw.

This design features a number of intricate enegry/power source/liquid type tubes running the length of the hammer. It has a very necronic feeling about it in the best way.

All pieces unscrew or pull apart. The item will be shipped in pieces and the user will need to assemble them.

Single color refers to only using one filament color for the entire print (the white hammer in the thumbnail is an example of this).
Multi color refers to the silver, black, and green hammer from the the pictures.