This functional 2-in-1 XXL cargo bike trailer can be used as a trolley or a bicycle cart in seconds and is useful for hand carrying or connect to bicycle or vehicle. The cargo trailer has a sturdy steel frame and is made of oxford fabric, making it durable and easy to maintain. The trolley has a suspension for a smooth ride, and the front wheel can swivel 360 degrees for strolling. The safety rotating joint ensures that the trailer remains upright if the bicycle falls over. The cart has a quick release hitch for easy attachment to a bike or a vehicle. Additionally, it has a foldable structure for easy storage and transport.