This is a module 0.5 herringbone fidget gearset. It's super simple to print, doesn't use very much plastic, and looks great, especially with a tri-color plastic such as is pictured.
Special thanks to 3DHoJor for donating the plastic I used to prototype this design. Here's what I used: https://amzn.to/4apABqQ
Some PLA-compatible lubricant will go a long way with this design, but is not required: https://amzn.to/4bJGtfk