The case swings out allowing you to access your tools by simply pulling a lever, meaning you no longer have to reach or climb in to the truck bed. The swing case is designed with lightweight ABS plastic making it durable against harsh weather conditions. The twist-lock system requires the corresponding key to open and shut the undercover swing case meaning your tools remain safe from thieves. A small shelf can be found within the swing case, which allows you to keep your tools organised and tidy. This shelf can be removed enabling you to carry your tools from vehicle to workstation quickly and easily. PLEASE NOTE: Bedliner will require small incision to fit to truck bed