A small simple puzzle with a ring, printed from PLA without the need for gluing.
Necessity to supply a string with a diameter of max. 4 mm and a length of 50 cm.
Procedure here: https://cs13.pikabu.ru/video/2024/09/10/1725994659248181411_c2727df3_576x1024.mp4
The author marked this model as their own original creation.