Comes in a set of (4) four, 1 pair of front foot rails and 1 pair of rear foot rails (left and right-hand side per pair). Foot rails allow for the mounting of under-rack storage slides as well as a table (Storage orientation and table size will depend on the length and width of the Rack). No drilling or track is required. These Foot Rails contain 1 opening to access Front Runner under rack mount tables (1 smaller (TBRA018 or 1 larger TBRA017).