Rhino-Rack's DK kits are used in all the 2500 roof rack systems. The kit consists of the pads and clamps which attach to your vehicle's roof. The kit includes 4 pads and 4 clamps., Rhino-Rack's DK kits are used in all the 2500 roof rack systems. The kit consists of the pads and clamps which attach to your vehicle's roof. The kit includes 4 pads and 4 clamps. Used to replace the pad and clamps on Rhino-Rack's 2500 two bar roof rack systems. Durable vehicle grade santoprene pads. Strong anti-corrosive black metal clamps. .