Abstract: A stroller that accepts and supports various types of child's car seats is easily converted from its operational state to its storage state by actuating a latching mechanism. The stroller includes a lever which facilitates the removal of the child's car seat. A seat assembly can be attached to the stroller to convert the stroller from a child's car seat carrier to a toddler stroller. The seat assembly remains in the upright position when the stroller is converted from the storage state to the operational state.