3 piece StackTech set including a rolling toolbox and 2 toolboxes with trays, bins, and dividers. Self-aligning nesting boxes fit on top of the rolling box, with accessory rails offering the option to add quick-release accessories for a customisable storage solution. Plastic Construction Extendable Handle & Wheels Hinged Plastic Lid Compatible with StackTech 192kg Load Capacity 2 Rear Wheels Splashproof Self-Aligning Nesting Plastic Construction Extendable Handle & Wheels Hinged Plastic Lid Compatible with StackTech 192kg Load Capacity 2 Rear Wheels Splashproof Self-Aligning Nesting