Fidget Gears for School Math. Basic calculation 2 to 9

I did these for my wifes school class. Printed them in PLA with a layerchange for the last 2 layers, for the numbers.it depends a little on the filament but with the blue one there were loose at once. The tricolour was a little tighter. But it was very easy to breake it loose. Some spinning and some drops of balistol-oil and they spinn very nice.