Three Necks Multiple Adapter, 19/26 Socket and 24/29 Cone, Borosilicate Glass Capacity_3000mL Set of 20 different alloys

Set of 20 different alloys supplied in wooden case with glass top

Used to produce concentric Newton's rings under monochromatic light

this polished-wood test tube rack holds six tubes up to 22 mm and supports both storage and inverted drying

sized for finer-gauge resistance demonstrations and small-scale heating elements where the heavier gauges would over-deliver current

Three Necks Multiple Adapter, 19/26 Socket and 24/29 Cone, Borosilicate Glass Capacity_3000mL Set of 20 different alloysThree neck multiple adapter in borosilicate glass features 19 26 socket for multi component chemistry apparatus assembly and distillation setups.