Stackable D-Size Battery Cell Holder, Alternate Model Material_Borosilicate Glass Two 25mm lenses folding out

Two 25mm lenses folding out together for 7x combined magnification in a pocket housing

Demonstrates that fluid pressure transmits equally regardless of vessel shape through a Pascal's-law kit of four plastic vessels with leak-proof metallic collars and a weight-loaded balance pan

offering a 250g capacity at 5mg sensitivity for Archimedes-principle work

an object marker

raw materials and according to international quality standards to ensure that they can withstand use in even the toughest laboratory environments

Stackable D-Size Battery Cell Holder, Alternate Model Material_Borosilicate Glass Two 25mm lenses folding outStackable D cell holder in durable plastic with metal contact plates, linking to additional holders in series or parallel to extend bench circuit voltage or capacity without soldering.