The webb elite r51sp is a 4 wheel rotary mower with a large 51cm cutting width briggs and stratton engine and 4 mowing option collection rear discharge side discharge and mulching the single speed power drive helps the operator to cut a larger area quicker the mower is fitted with a large 60 litre collector you can insert the mulch plug which blocks the grass chute creating additional air flow under the deck allowing the blade to cut your clippings in to tiny pieces before blowing them