50 ml centrifuge tube holder for 7 tubes

A holder for up to seven 50 ml centrifuge tubes.

I use the seven centrifuge tubes to prepare my water soluble supplements for the week.

Maybe its useful for someone.

Doesn't need supports to be printed.

Edit: The holder fits 50 ml centrifuge tubes with a diameter of up to 29 mm at the height of 40 mm.