Cargo Slats provide a platform to hold gear and allows direct mounting of popular sport equipment carriers without requiring the use of a load or cross bar. This 6-Piece Cargo Slat Kit REQUIRES the JK 2dr: Nebo Roof Rack Main Rail Kit (Silver: # 4722030) (Black: # 4722020). The purpose-built TeraFlex JK: Nebo Roof Rack System incorporates OEM aesthetics and styling with rugged performance to increase cargo carrying capacity for your adventures. The factory finished appearance makes it look at home in the city or on a fully loaded rig off road. The low-profile streamlined design has been tuned to reduce air resistance and noise when unloaded. The Nebo Roof Rack Main Rail Kit features universal accessory mounting capability.