A compact ring-shaped fidget spinner designed to be worn and spun with one hand. The minimalist design makes it discreet, satisfying to use, and perfect for keeping your hands busy while working, studying, or relaxing.

Original Size
The ring is designed in US size 11.5
Inner diameter: 21 mm

If you need to adjust the size, it is recommended to print core_lid.stl first to test the fit.
Once you find the correct scale, apply the same scaling percentage to all other parts to keep everything compatible.

Assembly
Assembly is straightforward.
For extra stability, you can add tiny droplets of super glue when joining the parts.

Printing Tips

• Recommended material: PLA or PETG
• Supports: Not required
• Infill: 15–20%
• Layer height: 0.2 mm

The final result is a smooth, compact spinner ring, perfect as a small gadget or a quick and fun 3D printing project.