The blocks are about 4 inch cubes.
They are laser cut.
Some are input blocks, some are output blocks. Some are different boolean logic gates, like AND, OR and XOR. Some blocks are simply wires. A different way to assign the blocks, might be to create RGB cube colors, and say things like "Blue boxes are glass in this round of game play..."
The augmented reality video game blocks are just like controllers. It's a video game with computer vision controllers built in for use with the webcam.