Coffee Mug Holder

Basically, it is a hook for detachable coffee mugs for baby strollers. As original hook/holder was made from elastic band which did not last long I had to build another one from the scratch. You will need some nuts and bolts to assemble the parts together.
Bolt M4x35
Nut M4
Bolt M3x35
Nut M3
(When I printed the hook part for the first time, I did not set the infill value properly and the part broke, now it is ok - infill value is more than 70%. The hook part should be printed in such way that neck of the hook must be horizontal to the printing bed)

Feel free to remix it as much as you can so it can fits your needs.
Enjoy it!