This kit creates a full-size rack that sits above your Chevrolet Colorado's (2015-current) truck bed. This Slimline II cargo carrying rack kit contains the Slimline II tray (1425mm x 1358mm), 2 Tracks, 2 Pickup Truck Bed Universal Legs that fit into the Tracks, and 2 Pickup Roll Top Leg Mounts. 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.This Rack Kit creates a second level of storage for your load bed above the roll top of your Chevy Colorado.All Front Runner Racks are backed by a Limited Lifetime Warranty*A load bed top ledge with a minimum surface area of 55mm wide and length of 1000mm - 1600mm is required to mount Front Runner tracks.Dependent on the roll top used a minimum clearance of 20mm is required from the inner face of the leg base, to the roll top outer edge. This applies when the leg is fitted to a Front Runner Track or other Roll Top channel.For further information on installation, please see the fitment instructions in the INSTALL tab.