Our Seal Sub Dubbing is hard to distinguish from real seal; it picks up light and has a glow in the water like real seal. It absorbs water and sinks quite rapidly. A lot of tyers have discovered our dubbing and except no substitutes. Our Seal Sub Dubbing is 100% natural fur and it dubs beautifully. It is well known in Denny Rickard's seal bugger fly. Our Seal Sub Dubbing comes in a generous quantity and will tie dozens of dubbed flies.