PBS-O-01 Proses PBS-O-01 O Scale Ballast Spreader 2 RailFor O Scale 32 mm 1 1 4" Track Gauges and 2 Rail Tracks Lay meters of ballast in just a few minutes Perfect ballast spreading is never problem again with this easy to use Ballast Spreader. Slots underneath the spreader keeps your ballast in line, spreads the ballast on track and never on rails. Works perfect on straights and curves. You can use on 2 rail track such as Atlas, Peco and many more