An example stroller disclosed herein includes a joint carried by a frame. The joint includes a first housing, a second housing, and a third housing disposed between the first housing and the second housing. The first, second, and third housings respectively include first, second, and third openings. The stroller includes a lock including a lever and a bar. The bar is to simultaneously mater with the first, second, and third openings of the first, second, and third housings when the lever is in a first position to prevent rotation of the first housing and the second housing relative to the third housing, and to disengage from the first, second, and third openings of the first, second, and third housings when the lever is in a second position to enable the first housing and the second housing to rotate relative to the third housing to fold the stroller.