FTM Trout Booster Oil (Braten Bengel) Oils to spice up doughs and natural baits. Just put a few drops on the rubber fish or bait fish. It can be super used when trolling trout dough or fishing with bee maggots, as well as for active and passive trout fishing. Naturally and gently produced. Outstanding catchability. Contents: 10 ml. FTM Trout Booster Oil (Braten Bengel) With an unusual roast aroma and strong effect on trout.