This 1560mm/61.4” long, full-size, Slimline II cargo roof rack kit contains the Slimline II Tray, Wind Deflector and 2 Foot Rails to mount the Slimline II Tray to your Chevrolet Silverado/GMC Sierra 1500 Crew Cab. Drilling is required for installation. All Front Runner Rack Kits contain installation instructions as well as all the components needed to mount the Slimline II Tray to your vehicle. All Front Runner Racks are backed by a Limited Lifetime Warranty* For further information on installation, please see the fitment instructions in the INSTALL tab. Note: Some side mount accessories are not suited for low profile foot rails such as JADA010 and RRAC103.