The detonator fires, triggering the main explosive charge, which shatters the internally grooved body into a large number of high-velocity steel fragments, which spray in all directions.
As with any bounding mine, wearing standard kevlar body armour offers no guarantee of safety: the large number of fragments produced by a PROM-1 will wound the unprotected limbs, face and eyes of its victim(s).
In any case, PROM-1s in a minefield may be surrounded by various types of minimum metal antipersonnel blast mines (e.g. the VS-50) which further hinders the clearance process.
Usually (though not always) trip-wires measuring around 20 feet (6.1 meters) in length are fitted to this mine in order to increase its activation area.
It is all too easy to concentrate on following a trip-wire back to its source, forgetting that there could be PMA-3, PMN or similar blast mines lying buried underneath.