This pocket maze stress relief toy can help eliminate boredom. When you need to focus, you can put it in your pocket and use it.

This model is printed in one piece, so it's designed for a layer height of 0.2mm. You should also set the print line width to 0.4mm. The small knob is printed together with the bottom surface

After printing is completed, you can gently use a small screwdriver to loosen the bottom of the knob - do not try to forcefully twist the top of the knob, as it may break first. To make the knob turn smoothly, you can apply a small amount of oil, light lubricating grease, or Vaseline to the rotation track and use the knob to distribute it evenly. It should slide very smoothly.