O'Brien Flipside 2 Inflatable Tubes With O'Brien's patented Side Whip Accelerator base the Flipside will send you on lightspeed whips! FLIPSIDE 2 65" X 70" 2 Riders Side Whip Accelerator Base 28 Gauge PVC Fully Covered 420/840 D Nylon 6 Handles w/ EVA Knuckle Guards 2 EVA Pads Featuring O'Brien's patent-pending side whip accelerator system, the Flipside delivers a ride like nothing else on the water. Once on-plane, you know you are in for the ride of your life as the side whip accelerators take over, rocketing the Flipside outside the wake with ease. A favorite of O'Brien's “test team” – the Flipside brings new levels of performance to the sport of tubing!