The Pro Steer is built with WOW World of Watersports' Flex-Wing system, so you can lean and flex to steer the towable. Designed for 1-2 people. This tube is sized a little smaller and while it can be used for an adult I'd recommend for 14 and under. What makes this tube great is that the rider can use the wings to help catch the wake off the boat. Leaning into one wing or the other will allow the rider to move from one side of the boat to the other without the driver having to do anything.