A-Smart&reg; 2 Pairs of J Bar Kayak Canoe Boat Snowboard Ski Surfboard Wakeboard Paddleboard Roof Rack Carrier Car Top Mount A simple, low-cost solution to carrying your kayak, Package Contains 4 Racks for 2 Kayak designed mounts to virtually all crossbars and load bars on the market. The carrier secures the kayak on its side, consuming minimal space on the load bar. As shown in the pictures we put the Kayak Rack on the Ladder Rack Bar.(sold separatly). A maximum of 4 sets of kayak racks can be mounted on a full size truck. Save your space. 1.5mm Steel Tube design with Rubber padding for carrying strength and kayak protection, it can hold up to 150lbs Kayak or Canoe, Wide mouth J bar offers easier loading and unloading, Quick on/off hardware ensures fast installation and removal. Will fit on Square, Round or Blade Style Crossbars Please Check picture for Size & Dimension.