Lund Ultima tool boxes are constructed from thick diamond plate aluminum, with fully welded seams, and reinforced dome style lids, providing ultimate durability. The Ultima tool box is available with a single, full length lid, or dual gull wing style lids, to perfectly fit your needs. Every lid features adjustable lid stickers, along with heavy duty gas struts that provide a smooth self-rising lid operation, allowing one handed easy opening. Ultima tool boxes include an internal deep molded tool tray for small item storage.