ROKR Wheeled Siege Artillery 3D wooden puzzle is produced by the elastic force provided by the rubber band (which may be changed to a spring or other structure) and the cooperation between the parts replaces the battery and realizes the manual launch.
For the round barrel, the small wooden slats used are pieced together into the near-circular barrel, which provides the necessary path for the projectile.
This cool ROKR puzzle weaves history and reality together, allowing us to hear the voice of a hundred years ago. The large and heavy shape shows extraordinary momentum. Combination of gameplay and style, echoing the past and the present.