Designed to fit with Yakima Control Tower system for the easiest on/off roof rack in the industry Each pad sold in a set of 2 (Landing Pad 12 and 13 sold in a set of 4) Configure your vehicle and find out which Landing Pads fit your car, truck cap, tent trailer, RV or Boat. Installs to vehicle with mounting hardware from inside. Includes a snap-on cover when not in use Love it 'Till You Leave It Limited Lifetime Warranty. If you have a vehicle with factory racks or rails, the Yakima Landing Pads are the foundation to start with. Pair with versatile Yakima Control Towers to make easy and secure tower system. Each Landing Pad is custom made to fit the exact make and model of your car.