Comprehensive Basic Electricity Kit, 3-Part Subcategory_Electricity and Circuits Six-lens optics set of three

Six-lens optics set of three double-convex and three double-concave glass lenses with ground beveled edges

Fine 40-60 mesh iron filings in a 100-gram sprinkle bottle

Sixty-five-piece molecular model set with 32 atoms and 33 bonds for demonstrating bonding angles

Six-piece laboratory-glass barware set bundles beaker shot glasses

Entry-level two-part human skull model separates the skull cap to reveal the cranial cavity for introductory head-anatomy teaching at secondary and college levels

Comprehensive Basic Electricity Kit, 3-Part Subcategory_Electricity and Circuits Six-lens optics set of threeThree part electricity kit with cell holders, bulbs, switches, diodes, rheostats, and connecting leads mounted on 4mm socketed bases for building circuits from 40 plus components.