The Dewalt DWST83526-1 can transport a huge amount of tools over the roughest terrain and store them in a safe and secure, dry environment The Dewalt DWST83526-1 ToughSystem 2.0 Mobile Tower runs on chunky 8 Inch wheels (DS450 Stackable Mobile Storage Box), making it easy to transport a large load of tools over an uneven working environment. Also included in the Mobile tower are the DS400 Toolbox and DS166 Toolbox. All Boxes have IP54 rated seals making them dust and watertight to protect whatever you put inside. Each Box is Dewalt Tracker Ready with a fixing point built in to allow a Tracker to be installed and the box tracked via DEWALT Tool Connect. The TOUGHSYSTEM Stacking system means you can customise the set up to your individual needs. Compatible with all TOUGHSYSTEM Products. Common Features: A high performance seal in the lid ensures they are dust tight and water jet resistant (IP65) to withstand the most severe weather New Easyclose Metal Wire Front Latches - Providing Easy One Handed Operation New Auto Stacking Latches - Intuitive, Easy To Use And Time Saving Latches For Connecting Modules Together New Wider & Stronger Handles - Better Ergonomics and Stronger New Half Module Compatibility - Allowing Half-Width Modules To Be Connected To The Box New Dewalt Tracker Ready New Metal Reinforced Padlock Eye - Providing Superior Security To The Contents New Name Panel Insert - Allowing Boxes To Be Labelled Up By End Users For Easy Identification Of Contents DS450 Features: New Detachable Handle - For More Convenient Storage Of The Box & Allows For Use In Pick Up Trucks New 8 Inch PU Durable Wheels Small internal tote tray DS400 Features: Small internal tote tray DS166 Features: 2 Removeable Large Organiser Boxes With Internal Dividers & Clear Cover Specification: External dimensions: DS450: Width: 550mm, (including wheels) 610mm Height: 410mm, (including handle) 685mm Depth: 370mm DS400: Width: 550mm Height: 410mm Depth: 370mm DS166: Width: 550mm Height: 180mm Depth: 370mm