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

Nine-piece flat brass weight set with dual hooks on each piece

fabricated from glass tubing 6 mm bore

and histology laboratory instruction

Demonstrates electromagnetic switching on a base with 4mm plug connections

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.