Class B Burette with Glass Key Stopcock, 100mL, 0.2mL Graduations, 30.5 inch, Borosilicate Glass Neulog_Accessories Open-frame demo motor with two

Open-frame demo motor with two opposing coils on a spinning axle and 4mm banana inputs

Wood-based friction board apparatus with a 19-inch metal surface plus two hooked friction sliders with different top materials for comparative sliding-friction investigations

Compact 150mm black 4mm-stackable lead with nickel-plated split-hollow pins

Greatly magnified Paramecium model reveals cilia arrangement

Class B Burette with Glass Key Stopcock, 100mL, 0.2mL Graduations, 30.5 inch, Borosilicate Glass Neulog_Accessories Open-frame demo motor with twoClass B burette in borosilicate 3. 3 glass holds 100mL with 0. 2mL graduations and glass key stopcock for titration and volumetric analysis.