Aairhead Orb keeps your tube tow rope out of the water and the wake so the tube responds instantly to the boat's change of direction, as it's meant to do. Orb is an absolute necessity to effectively tow tubes from a boat with a low tow point on the transom. It enhances safety and extends the tube's life because it virtually eliminates all slack in the line. A 60', 4100 lb. tensile strength rope is included. Durable 30 gauge PVC construction (no nylon cover).