3-Prong Double-Adjustable Universal Clamp with Boss Head Subcategory_Bases and Rods mounted on a swivel boss

mounted on a swivel boss head fitting 18mm rods for secure angular placement on retort stands

Open-top cylindrical dropping funnel in borosilicate glass holds 100mL with PTFE key stopcock for controlled liquid addition in chemistry procedures

the wide aperture and longer focal distance suiting whole-page reading and broader image-formation experiments

Heavy-duty cardboard storage carries this 4 x 1

3-Prong Double-Adjustable Universal Clamp with Boss Head Subcategory_Bases and Rods mounted on a swivel bossThree prong double adjustable universal clamp with an integrated bosshead and vinyl coated prongs, gripping round bottom flasks, condensers, and tubes during distillation and reflux.