Heavy Duty Folding Trolley, The HI3004 is a great tool for use around the warehouse, or for delivery drivers and engineers due to its light weight. The 200mm Pneumatic castors help negotiate terrain wherever the trolley arrives, grass, chipping's or rough concrete the HI3004 will cope with them all. Just depress the bar on the base of the trolley and the handle folds down to the deck, enabling easy transport or storage.