Cargo Container - Brio Compatible

Brio compatible cargo container for the cargo system I have been making for my kids. My cargo system includes:Cargo ContainerTank ContainerCargo Train CarCargo Loading DockCargo ShipCargo Truck (still in progress) You can try printing with supports on the bottom, but I think I have gotten better results with it on the flatter end (end with three horizontal lines) without supports. They were originally made to replicate these containers from Amazon.