Yakima RailGrab Towers (set of 4): For most any rails you have on your vehicle, the Yakima RailGrab Towers does just what its name implies. They grab onto your rails and refuse to let go, for a sturdy and secure base to your rooftop rack.
Compatible with round crossbars
RailGrab Towers have a broad range of fit - the RailGrab is sold in a set of 4 and are designed to attach load bars to factory raised or flush siderails.
The RailGrab now comes with three complete claw sets for varying rail sizes thicknesses with the smaller claw being pre-installed.
Lockable with SKS cores (sold separately)
Grabs hold of the crossbar with an iron grip
Low profile provides a sleek, integrated look for your roof rack
Dimensions - 4-1/2” wide, 4” tall, 5.5” long
Patented technology (so don't expect to see this stuff by another brand)
Install towers in seconds and stays put for easy removal