Cylindrical Dropping Funnel with PTFE Stopcock and 19/26 Plastic Stopper, 50mL, Borosilicate Glass Subcategory_Tongs 5-inch needle-pointed stand grips a

5-inch needle-pointed stand grips a 3/4-inch-wide bar magnet upright for hands-free study of attraction

the geometry approaching minimum-deviation behavior where small apex shifts produce visible refraction-angle changes

This funnel measures approximately 15

restoring UV-C output in the compatible goggle sanitizer cabinet once the original lamp reaches end of service life

Convex glass mirror at 50mm diameter and 100mm focal length

Cylindrical Dropping Funnel with PTFE Stopcock and 19/26 Plastic Stopper, 50mL, Borosilicate Glass Subcategory_Tongs 5-inch needle-pointed stand grips aCylindrical dropping funnel in borosilicate glass holds 50mL with PTFE stopcock, 19 26 plastic stopper, and ungraduated design for liquid addition.