These rails mount to the roof of your vehicleand are connected to the Front Runner Inner Brackets for the Jeep Wrangler JK 3-Door as well as the Front RunnerSlimline II roof rack. Comes in a set of (2) two, left and right side. Includes all mounting parts. These Foot Rails contain 1 opening to access a Front Runner under rack mount table (1 smaller prep table or 1 larger camp size table).