This is a polypropylene, stable, non-corrosive, detachable
stand, which can hold 28 pipettes. The top disc has holes
for holding the pipettes while the lower one has pilot
holes where the pipette tips rest and liquids drain down
to the base. Both discs can be moved up and down the rod
to accommodate various lengths of pipettes.
Each of the four modules can be rotated independently
in desired direction. Several sizes of the test tubes,
culture tubes, centrifuge tubes or micro centrifuge
tubes can be used at the same time.