Rokr Locomotive Wooden Model Kit

After completing this mechanical model, you will send yourself back to the old industrial age. Open the clockwork, it runs fast and smoothly. This kit combines the charm of the old and the mechanical power, very attractive. Wooden mechanical gears toy is operated by a hand-wound spring, no battery, no other power need, self-propelled but you need to use a little wax and the tool provided to make it move smoothly. Unique Mechanical 3D Puzzle, laser-cut plywood material, no toxic, environment-friendly, smooth wooden board. All pieces are pre-cut, no glue needed. The interlocking mechanisms are pretty ingenious.