The Innovative Concepts 72 in. See Me Scuba Safety Tube is the tallest safety tube available. We feel that a safety tube, or safety sausage, as it is commonly referred to, should be mandatory scuba equipment for all divers. If you surface far away from the boat or in rough seas, it`s extremely hard for a dive boat to spot you. A safety tube makes it easy to spot a scuba diver even in large swells. It manually inflates to 72", and rolls down to 2.5".