This set includes four large springs for the demonstration of Hooke’s Law or Conservation of Energy. Each spring is constructed of rugged spring steel with large loops that hang from a pendulum clamp or stretch with hanging masses. Spring constants range from 4 N/m to 14 N/m. Spring lengths vary between 11 cm and 22 cm.
WARNING: CHOKING HAZARD!
Small parts. Not for children under 3 years.