4-Piece Premium Borosilicate 3.3 Glass Laboratory Flask and Beaker Shot Glass Set Subcategory_Entomology Supplies this bottle of coarse 20-mesh

this bottle of coarse 20-mesh iron filings is a staple for classroom magnetism and field-pattern demonstrations

packaged with a keeper that bridges the poles to keep the field intact between sessions

brake pedal switch

Improved Wimshurst electrostatic generator with two counter-rotating sectored discs that build high voltages through electrostatic induction for spark-gap demonstrations

Mid-length 750mm black insulated lead with 4mm banana plugs at both ends

4-Piece Premium Borosilicate 3.3 Glass Laboratory Flask and Beaker Shot Glass Set Subcategory_Entomology Supplies this bottle of coarse 20-meshBuilt for chemistry themed entertaining, this 4 piece borosilicate 3. 3 glass set combines flask shape and beaker shape shot glasses in one laboratory quality collection.