T-Shape Screw-Thread Connector, Borosilicate Glass Item Type_Dissection Pins sized for compass-deflection and small-scale

sized for compass-deflection and small-scale field-line investigations

6 pounds on a 13 by 7 inch footprint for side-by-side burette titration setups

the larger geometry pushing pole separation wide enough that field lines extend visibly beyond the magnet body for filing maps

2A rheostat with oxidized constantan winding on a 300x44mm vitreous-enameled tube

75 inches of plunger travel

T-Shape Screw-Thread Connector, Borosilicate Glass Item Type_Dissection Pins sized for compass-deflection and small-scaleT shaped screw thread connector in borosilicate glass features thread size 13 for connecting multiple components in chemistry apparatus assembly.