Eppendorf hexagonal case

An eppendorf hexagonal case, made to hold up to four 2ml eppendorf tubes (1.5ml should work too).
Was made in order to position the tubes in a horizontal position on a shaker. Vertical position is also possible.

Case is placed inside the square holder (which is taped to the shaker) in order to prevent the tubes from flying out of the holes.
This allows the case to be easy to remove without re-taping the entire thing.

Edit: Modified the holder to reduce wiggle room and slightly changed i