Cylindrical Dropping Funnel with PTFE Stopcock and 29/32 Plastic Stopper, 500mL, Ungraduated, Borosilicate Glass Glass Flasks_Volumetric Flasks -Class B and acetate strips for hollow-conductor

and acetate strips for hollow-conductor work

25 x 2 x 1 inches with a sliding top

equipping a class for dual-diameter compound-pulley experiments without cord-threading setup

Used to introduce semiconductor rectification

Wooden handle supports a 12-inch bristle cleaning brush for scrubbing general glassware

Cylindrical Dropping Funnel with PTFE Stopcock and 29/32 Plastic Stopper, 500mL, Ungraduated, Borosilicate Glass Glass Flasks_Volumetric Flasks -Class B and acetate strips for hollow-conductorCylindrical dropping funnel in borosilicate glass holds 500mL with PTFE stopcock and 29 32 plastic stopper for controlled liquid addition.