The resonance tubes are made of borosilicate glass and have an outside diameter of 38 millimeters. The tube is 450 millimeters (17.75 inches) long. The borosilicate glass tube is ungraduated. Use these resonance tubes in your physics classroom to study resonating waves or velocity of sound in air.
Our products are not toys. Use in a laboratory or educational setting only. Not for children 13 and under.