16.25" Gear Train Simple Machine Model Handle Type_Wood 75-inch mouth on a 4

75-inch mouth on a 4 by 4 inch base

5 inches of nylon bristles for scrubbing glassware up to 4 inches in diameter

Spanning C (256 Hz) through C (512 Hz) in scientific pitch

Seventy-eight-piece molecular model set with 45 atoms and 33 bonds for building basic organic and inorganic structures

Heavy-base Bunsen burner adds stopcock gas control for fine flame adjustment during chemistry experiments with liquid propane or butane fuel

16.25" Gear Train Simple Machine Model Handle Type_Wood 75-inch mouth on a 4Used to demonstrate how meshing gears transmit rotation, change speed, and multiply torque, this 16. 25 inch gear train simple machine model arrives ready to use with no assembly required.