The RailGrab Tower is designed to fit most any side rail style- from raised to flush side rails. This single tower replaces SIX previous products from Yakima, including the LowRider, Locking EZ Rider, LowRider Max and three claws. For retailers and consumers, this means less confusion at the point of purchase, one mount fits all. For the environment, it means less energy, packaging and materials put into so many different SKUs, which is a good thing. The claw inside this unit can be adjusted up or down to fit your car's side rail, then anchors to the bar to keep it set. Available in 2 pack or 4 pack. Kit includes two 58" Yakima crossbars and 4 RailGrab towers.