United Scientific Tuning Fork Set with 13 Forks, Mallet, and Wooden Storage Case (TFBOX13) are arrayed in a circle

are arrayed in a circle on the outer edge of the PCB (printed circuit board)

Attributes to this model are the ability to dissect portions of the ear into six parts

Length (mm) 75

Standard Accessories:

Square wave output: 50Hz~5000Hz

United Scientific Tuning Fork Set with 13 Forks, Mallet, and Wooden Storage Case (TFBOX13) are arrayed in a circleTuning forks for use in science experiments involving sound wave physics Tuning forks with frequencies of 100, 128, 256, 288, 320, 341. 3, 384, 426. 6, 480, 512, 1,024, 2,048, and 4,096Hz Mallet has one hard end and one soft end for contact with tuning forks Comes in fitted wooden case The United Scientific TFBOX13 tuning fork set includes a mallet and tuning forks with frequencies of 100, 128, 256, 288, 320, 341. 3, 384, 426. 6, 480, 512, 1,024,