Many boats suffer from black streaks, not just the pontoon shown in the video below. Black streaks are ugly and can be difficult to remove, if you're using the wrong cleaner that is. The Bio-Kleen Black Streak Remover easily cleans black streaks on any boat or surface just by spraying and wiping clean. It's safe for decals, graphics and all surfaces, that's something ineffective household or all purpose cleaners just can't say. So quick wasting your time and pick up the most effective, yet also safest, black streak remover on the market.