The thule xroad railing foot system is a brilliant universal elegant railing rack that fits the broadest range of railing dimensions the rail is turned into a strong iron grip by turning the integrated handle on the foot so the strap is shortened up to grip the foot has a rubber coated steel strap which is wrapped around the railing ensuring a sturdy and undamaging to your car attachment the rubber lining also protects the surface of the railing from scratching no extra tools are needed as