Class B Burette with Glass Key Stopcock, 100mL, 0.2mL Graduations, 30.5 inch, Borosilicate Glass Neulog_Accessories 3 glass stirring rods with

3 glass stirring rods with rounded ends

Pairs a 50 by 50mm plano-cylindrical glass lens with +10 diopter optical power

Push-button engagement on a hand-cranked single-sided cone clutch

Economy Hope's apparatus demonstrating the anomalous expansion of water near 4°C as thermometers at different heights register densest water sinking while colder water rises

Pack of low-form borosilicate 3

Class B Burette with Glass Key Stopcock, 100mL, 0.2mL Graduations, 30.5 inch, Borosilicate Glass Neulog_Accessories 3 glass stirring rods withClass B burette in borosilicate 3. 3 glass holds 100mL with 0. 2mL graduations and glass key stopcock for titration and volumetric analysis.