343-Piece Giant Molecular Model Set, 99 Atoms Science at Home_General Science Supplies Rod-mounted full-size skeleton pairs bare

Rod-mounted full-size skeleton pairs bare bone on one side with painted muscle origins and insertions on the other for skeletal and myology teaching

drawing 6V AC for demagnetizing and AC or DC for magnetizing iron bars and strips

the lower-friction variant of the metal-bearing bench-clamp pulley in the series

equipping a class for compound-pulley and variable-diameter work

Sliding-top wooden box 4 x 2 x 1 inches

343-Piece Giant Molecular Model Set, 99 Atoms Science at Home_General Science Supplies Rod-mounted full-size skeleton pairs bareWhole class visible giant molecular model set with 99 atoms 1 2 inches in diameter and 343 total pieces including double bond, turning, and connector links for back of the room demonstrations.