Resonant Tuning Fork Set
For the Demonstration of Resonance of Sound.
Included in this set is a pair of Heavy Aluminum 440 Hz.
Tuning Forks, a sliding bar to change frequency Two Resonance boxes and a striking mallet.
Inside measurements of Resonance Boxes are 1.5 H x 3.125 W x 6.75 L (Inches)
A preview of the included instructions can be found at the bottom of this listing.
Specification