Abstract: A safety arrangement for a device such as a baby carriage, wheelchair or the like, having an actuator apparatus including first and second relatively displaceable parts movable between a first and second position. When the first part is arranged, in the first position it actuates a brake, and in the second position causing the brake to be in a non-braking state. The actuator is arranged, in the absence of external influence, to adopt the first position. A locking member is releasably attachable to the actuator for locking the first part in the second position, and unlocking of the first part in the second position upon application of a force. The first part is rotatable relative to the second part about a axis for displacement between the first and the second position, and includes a retaining mechanism arranged to connect the locking member to the actuator.