Set spinning by pressing on the handle on the top, when you’ve reached maximum speed, you simply stop and let it spin away. Metal construction. It lets out a constant low whistle, and will last a long time before it finally stops - at which point, you can just set it going again. Great fun will be had by all. We've never failed to see it bring forth lots of smiles. It's about as retro a counterpoint to today's electronic culture as can be had.
8-1/4 diameter, 8-1/2" high.