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.