Ring and Ball Apparatus with Stand Glass Bottles_BOD Bottles Steam-sterilizable polypropylene pipette rack holds

Steam-sterilizable polypropylene pipette rack holds 12 pipettes horizontally for bench storage and autoclaving in molecular biology laboratories

8mm inner diameter

fabricated from glass tubing 6 mm bore

field lines

Shows oxygenated and deoxygenated blood paths between heart chambers and alveolar surfaces through seven hand-painted removable parts designed with medical-professional input

Ring and Ball Apparatus with Stand Glass Bottles_BOD Bottles Steam-sterilizable polypropylene pipette rack holdsStand mounted ring and ball thermal expansion apparatus, dropping freely through the ring when cool but stopped by the ring once flame heating expands the ball.