Product dimension (L*W*H CM): 56*2.5*59
Inner packs dimension (L*W*H CM): 64*4.5*58.2

It is used to demonstrate the composition of two waves in the same direction, at the same frequency but with different amplitude; demonstrate the composition of two waves in the opposite the direction, at the same frequency but with different amplitude; demonstrate the composition of two waves—fundamental wave and second harmonic in the same direction, at different frequency but with different amplitude.