This cylindric shape is a test assembly for TWT (https://cults3d.com/en/3d-model/game/twt-toolbox) 3D printable toys for kids. Please like, comment/post a make share with others. If there is place for improvement please share with me. Help me to create more designs related to this.

For more designs:
https://cults3d.com/en/users/UniqueDude/3d-models
https://www.printables.com/@UniqueDude/models

19/05/2024 update:
Added 40mm studs (2 types) for more fun!