Constructed of thick diamond plate aluminum, fully welded seams and a reinforced dome style lid with high quality foam weather stripping; the Ultima storage box is hardworking and reliable. Designed with a full length piano style hinge, adjustable lid stickers, and twin gas struts providing a smooth a self-rising lid upon opening -even in cold weather, the Ultima provides years of dependable service. Boxes include a deep molded tool tray that provides storage for small items and sits above the ledge, allowing for maximum storage inside the box. Ultima Gull Wing Crossover Storage Box 2004-2010 Chevrolet Colorado Fleetside, 1987-2008 Dodge Dakota Fleetside, 2009-2010 Dodge Dakota Big Horn Fleetside, 2009-2010 Dodge Dakota Laramie Fleetside, 2009-2010 Dodge Dakota Lone Star Fleetside, 2009-2010 Dodge Dakota ST Fleetside, 2009-2010 Dodge Dakota TRX4 Fleetside, 2004-2010 GMC Canyon Fleetside, 2005-2010 Nissan Frontier Fleetside, 2005-2010 Toyota Tacoma Fleetside