Time evolution the maximum (solid lines) and the median (dashed lines) radius of the dust particles in the model with and without the mass transfer effect. Both of the models generally evolve in similar way, what can be observed by following the median radius change. However, whereas the growth of the biggest particles is halted at sizes approximately ~0.7 cm by the bouncing in the case of the model A, in model B some particles manage to grow till the radius of 100 cm after 30 000 yrs.