Chelsea Carriage is a type of PRAM, which is a four-wheeled baby carriage designed for infants and toddlers. It is usually made of wood and metal, and is often decorated with intricate designs. The Chelsea Carriage was first produced in the late 19th century in England, and was popular among the upper classes. It is still used today, although it has been modernized to include features such as adjustable handles and brakes.