Introductory Optical Bench Set with Lamp Housing and Lens Holder Subcategory_Electrostatics Sodium chloride lattice kit with

Sodium chloride lattice kit with 27 color-coded gray and green atoms plus 54 connectors for building the full cubic NaCl crystal structure in three dimensions

Four-finish Leslie's cube in tinplate at 13cm per side — blackened

sized for cleaning narrow-diameter tubes

the half-size circulatory model traces arterial and venous pathways from heart to peripheral capillaries

laminated iron core

Introductory Optical Bench Set with Lamp Housing and Lens Holder Subcategory_Electrostatics Sodium chloride lattice kit withSliding rail aluminum bench with 1. 2m measuring tape, a lamp house, universal 50 x 50mm slide holders, pin and gauge objects, slits, scale, concentric circles, and a dual scale screen.