Product dimension (L*W*H CM): 29*29*6
Inner packs dimension (L*W*H CM): 39*5*31.5*8.5

It is used to simulate Brownian motion, gas diffusion, аparticle scattering experiment, gas molecule in heat movement, motion of liquid molecular, liquid evaporation, gas isothermal change, the cause of force changing object motion state, uniform circular motion and gas compression-liquidation experiment.