Magic Box with Rod & Ring

Saw this great project on YouTube and thought it would be a nice present for my grand-kids.Ring is ø20x2.5mm. I used a magnet of ø6mm. Thickness not important. Designed in TinkerCad. Slider in Version German "Magie" and English “Magic”. Your choice!Housings printed on my BambuLab A1 with Geeetech PLA Marble. Rod printed on my BambuLab X1C with manual color changes 20mm of each end. In PLA Geeetech White and Green. Printed standing upright, for roundness and easier color change. 3mm brim applied. Green / White and vice-versa.