2-Tier “Rail Mount” Provides Upper Level Hauling, Leaving the Floor Wide Open. Result, a 60% Increase in Hauling Capacity! Rail Mount Accomodates Any Cart-Sled 26" X 44". Ideal For Ice Fishing, Hunting and Lanscaping. Hauls Fuel and Water, Propane Tanks and Landscape Materials! "Provides Added Hauling Capacity For Big Game and Waterfowl Hunting!” Fuel Lock’R is Rugged Like None Other, Laser Cut Slots Provide Easy Securing of Load Straps. Kit Includes RailMount and Fuel Lock'R.