simple puzzle with a ring —

Founded simple puzzle with a ring models & stl files for printing
Cross Puzzle
Creative MinerX
Cube Puzzle  Brain Teaser
Creative MinerX
PinWheel Puzzle
Creative MinerX
10 Digits Puzzle
3DP_PARK
2D3D Puzzle box
Wit Orbit
EU puzzle map
Devrosx
periodic tiling puzzle
The Alchemist