Eppendorf tube holder

This is an Eppendorf tube holder made to hold 0.5 mL, 1.5 mL and 2.0 mL Eppendorf tubes. It is made to hold a tube on a balance. Therefor it is scaled a bit bigger than it has to be, for a stable stand. One side holds the 1.5 mL and 2.0 mL tubes and the other side holds the smaller 0.5 mL tubes.