The file 'Air Powerd Spinning Top 3D Printer Model' is (stl) file type, size is 1.0MB.
you will need a 4.4 mm bb and some way of attaching it ie super glue or hot glue.
to use air to spin the top you need to use a straw to direct the air to the edge of the blades as far to the right as you can. the two pictures are two different prints at 100% size and 195 %size
air_powerd_spinning_top.stl | 2.5MB |