The casters of luggage carts include fixed wheels and universal wheels. Although different casters have different characteristics, the advantages of fixed wheels are that the car has a high bearing capacity and the wheels are more wear-resistant. It will be very difficult to walk on some uneven roads. Labor-saving; and the universal wheel is very flexible in the process of use, the luggage cart can go from multiple directions, pushing freely, reducing a lot of unnecessary trouble, for the luggage cart, the casters are more inclined to the front wheel universal wheel, The rear wheel uses a fixed wheel.