With this portable stair climbing trolley, you can carry your luggage more effortlessly! This stair climbing trolley combines an all-terrain three-wheeled chassis with a foldable trolley. Its unique engineering design means it can easily drag groceries into a 149.68kg weight and is developed on a modular folding chassis, which can meet the unique challenges of different environments and objects on different surfaces, and has been improved. Stability and balance. The four wheels are always in contact with the ground, and the weight of the load is more evenly distributed, making it easier for you to carry. Its foldable and retractable design cannot save space when not in use, but it also brings you endless convenience.