Set of 2 Heavy Duty Tuning Fork with Resonance Box and Hammer Sympathetic 16.5cm (6.5") Tuning Forks 440Hz allowing users to explore the

allowing users to explore the effects of variables such as mass and length on pendulum behavior

side supports

Superior chemical durability

and cords for comprehensive experiments on forces and equilibrium

Precise Temperature Control: Equipped with PID temperature technology

Set of 2 Heavy Duty Tuning Fork with Resonance Box and Hammer Sympathetic 16.5cm (6.5") Tuning Forks 440Hz allowing users to explore theIncluded: Set of 2 Heavy Duty Tuning Fork with Resonance Box and Hammer Sympathetic Tuning Forks 440 Hz. Each of the large Aluminum Alloy tuning forks is hand ground to high accuracy and has a frequency of 440 Hz (hertz=cycles second). Each fork measures 16. 5cm (6. 5") long & is mounted on an individually adjusted resonance box. They have been carefully matched and individually electronically tuned for tonal clarity to their designated or physical