About this item shipping container wheels ，Safely Moves Up to Shipping Container 40 Ft Size; the load rating is 8800 pounds per set; not made to move full containers; designed to move 20 and 40-foot empty shipping containers with ease。 Easy To Use：just insert the wheel into the bottom interface and fix it with screws, the installation is more rapid and convenient Works with a variety of Conex containers, including steel and insulated shipping containers, tiny homes, and can be fitted to any shipping container with