The VPMA-2 is the practice version of PMA-2. It has the same dimensions, case materials and colour as the real mine PMA-2, but it doesn't have 100gram explosive filling. Instead of explosive filling, it has smoke pyrotechnic filling.
When the soldier steps on VPMA-2, the igniter stes off the smoke pyrotechnic mass and smoke goes out through the 2 holes on the upper part of the mine and signalizes it's activation. It has a yellow band painted on the top part of it which symbolizes that it is practice mine.