Plain Still Head with B14 Thermometer Socket, 24/29 Flask and 24/29 Condenser Cones, Borosilicate Glass Diameter_7mm capable of producing repeated sparks

capable of producing repeated sparks once the base is charged by friction

the longest working face in the line stretching beam travel for class-front lateral-displacement demos

supporting benchtop organic chemistry distillation with ground-glass joint assemblies

Stackable grid base on this polypropylene test tube rack holds 60 tubes up to 16 mm across a 9

six steel wires carrying 20 beads each for hands-on instruction in counting

Plain Still Head with B14 Thermometer Socket, 24/29 Flask and 24/29 Condenser Cones, Borosilicate Glass Diameter_7mm capable of producing repeated sparksPlain still head in borosilicate 3. 3 glass features B14 thermometer socket and 24 29 connections for distillation temperature monitoring.