Tube Keeper Tired of lying on top of your tubes to keep them from flying out of your Craft No place to sit? Tube Keeper to the rescue! It saves essential passenger space and prevents serious injuries by securing towables to your Watercraft stern. Simply attach the straps around the tube's handles. Then attach with either the giant 3-1/4 in. suction cups or loop the stretch cords around a cleat or rail. The 2 in. wide adjustable straps are easy to tighten a secure hold
