Abstract: A brake device for use on an infant or child stroller that prevents or stops an unattended stroller from moving by engaging a pin with a socket formed in the side of a wheel when a brake handlebar is released. In a preferred embodiment of the present invention, the brake device is comprised of at least one wheel/brake assembly having a pin and socket configuration, a brake handlebar positioned in close proximity to stroller's handle, and a cable for connecting each wheel/brake assembly to a pivoting brake handlebar. The device enables an operator to disengage the brake device by squeezing the brake handlebar together with the stroller's handle, thus disengaging said pin member from its socket. The brake device can be incorporated into the design of new strollers, as well as, retro-fitted onto existing strollers.