Music Box Mechanism
Item # P7-7330
Regular price
$18.85
Unit price
per
Shipping calculated at checkout.
Buy 6 and pay $17.70 each!
Turn your whole chalkboard into a speaker! This music box mechanism is quiet on its own, but just hold it against a large object and hear a dramatic increase in volume!
WARNING: Cancer & Reproductive Harm -- www.P65Warnings.ca.gov
In Stock
Additional Details
Turn your whole chalkboard into a speaker!
This music box mechanism is quiet on its own, but hold it against a large object (table, chalkboard, window, paper cone, drum) and hear a dramatic increase in volume! It's a simple but memorable demonstration of how sound energy transfers through the process of resonance.
Products being sold are not toys. They are for Educational / Laboratory use only. They are not for use by children 12 and under.
