B'n'M Pro Staff Trolling Rod has new Dyna-Flow guides! The trolling series with the most crappie championships just got a little bit better with the addition of these light, yet very durable guides. They’re made of extremely durable alloy with smooth, stainless inserts that will never pop out while spider rigging aggressively or pulling crankbaits. But they’re still the most sensitive trolling rod out there.