Cable holder for plant water automation

I needed a way to secure and tidy up some of the small tubes for my green wall project. They are 4.6mm in diameter and from Gardena. I designed these small holders that are very quick to print and hold 1, 2 or 3 tubes. You can simply “click” them into the indentations and easily remove them again later. The back is flat and designed to be glued to some surface.