Cast Iron Stump Base, 2.3", Black Entomology & Zoology_Dissection Plastic-resin Hall's carriage at 5

Plastic-resin Hall's carriage at 5

Used as the positive-rail counterpart to the long black lead

sized to fit the PH0380A bar-breaking apparatus for repeated thermal-contraction fracture demonstrations

Glass-flask leaf electroscope with a brass rod and aluminum leaf

this student molecular model set covers both inorganic and organic chemistry topics with durable plastic atoms and connecting links

Cast Iron Stump Base, 2.3", Black Entomology & Zoology_Dissection Plastic-resin Hall's carriage at 5Cast iron stump base with a black chemical resistant coating, 2. 3 inches wide and 1. 75 inches tall, supporting 13 mm rods for compact small scale laboratory stand setups.