The stanley tools fat max structural foam toolbox is fitted with wheels and a soft grip telescopic handle making it ideal for transporting heavier loads on the job it is constructed of 4mm structural foam plastic for strength durability and long life with extra large storage capacity there is a portable tote tray that fits into the tool box for organising and carrying smaller tools and accessories the toolbox offers a waterproof storage solution rated ip53 thanks to the all round water seal for