Fidget Stick for 5/16" Nut - The new fidget spinner

thingiverse

This model was designed specifically for use with pairs of 5/16" nuts at the top and bottom. To assemble the model, simply print both caps simultaneously and secure everything together using glue. For added durability, I wrapped the caps in a layer of EVA material - now it's ready to hit the playing field! If you prefer not to use nuts, no problem! Simply print the solid body at 90-100% infill and it will function flawlessly.