9-Piece Flat Weight Set Lab Equipment and Supplies_Metal Labware and membrane systems for introductory

and membrane systems for introductory cell biology teaching

a 12V LED source on a US plug

sized as a self-contained module that lights up when current flows the right way for polarity-and-circuit lessons

sized for repeated classroom-scale field-line mapping with a GHS-compliant safety label

Brass-wire conductor and seven plotting compasses on a clear base

9-Piece Flat Weight Set Lab Equipment and Supplies_Metal Labware and membrane systems for introductoryNine piece flat brass weight set with dual hooks on each piece, totaling 500 grams and linkable in chains for cumulative loading during balance experiments and physics demonstrations.