Telescoping Hanger

This hanger comprises of 5 parts, the hanger, extension1 and extension2. Extension1 and Extension2 should be printed twice. Parts have different diameter so one part can go through the other. The idea is that you have the ability to adjust the width of the final assembly, full width(410mm), medium stage(310mm), and minimum width(210mm) and was inspired from telescopes. I also tried with this design to make something aesthitically pleasing. Each part has protrusions and holes which are used to k