The WEST MARINE4k Booster Ball with Tow Rope is a custom tow rope with inflatable buoy in the middle that will boost your towables performance in many ways. It keeps the tow rope out of the water while towing. This enhances the overall performance of most towables and all the Action Tubes.Reduces drag, rope spray, submarining, lowers stress on the tube and cover and prevents rope sprayFor use with 1-4 person towables60' including ball38" x 27" with ball deflated38" x 28" with ball inflated