220-Piece Advanced VSEPR Molecular Model Kit, 65 Atoms Size_17.5 Inch and 500mm focal lengths for

and 500mm focal lengths for comparing converging and diverging behaviors

5-capacitor condenser box features capacitors from 1 to 4

5 inches with a brass-chrome water wheel in a 10cm aluminum casing

3 glass features 10mL capacity with spout for small-volume chemistry and laboratory applications

producing a spread of spring constants for Hooke's-Law and mass-spring comparison work in introductory mechanics

220-Piece Advanced VSEPR Molecular Model Kit, 65 Atoms Size_17.5 Inch and 500mm focal lengths forSixty five atom advanced VSEPR kit at 220 total pieces with multifaceted atoms supporting trigonal, tetrahedral, bent, and pyramidal geometries alongside single, double, and triple bonds.