The 79102 polypropylene, stable, non-corrosive, detachable stand can hold 28 pipettes with maximum diameter of 9/16".
The heavy base measures 9" in diameter and a polypropylene coated square rod measuring 15" in length is screwed into the base. The top disc that can be fixed on the rod has holes for holding pipettes while the lower one has pilot holes where the pipette tips rest and liquids drain down to the base. These discs should be kept parallel to ensure that corresponding holes are being centered
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