The Kiefer 50" Rescue Tube is one of the best all around piece of water rescue equipment available. This multi-purpose device can be used for throwing or for towing a swimmer. This rescue tube features added length, an adjustable shoulder strap, and reach assist loop. Features and Benefits: Tube length: Adjustable shoulder strap and reach assist loop end give added comfort and rescue technique flexibility. Durable strap-through-tube construction extends tube life, protects tube strap from pulling out. Smooth, rounded edges reduce drag in water and are crack resistant by design. Extra thickness for added buoyancy gives an added boost, making swimmer retrieval easier for lifeguards / rescuers. Constructed of soft vinyl-coated PVC foam to increase swimmer comfort and reduce chances of injury on contact. Approved by leading lifeguard trainers for use in pools, water parks, and open water.