38" Diameter x 56" L.  Get ready for some serious action! This bullet-shaped tube will be sent into a spin with a good turn of the boat. Its swivel system allows the Gyro to roll over and over with the rider inside. Watch out, this tube is not for the faint of heart!  Featuring:  Heavy-Gauge PVC Bladder, Speed Safety Valve, Single Chamber Inflation, Reinforced Swivel Action Tow System, 2K Rope Included.  Model 53-1815WR