Abstract: An animal restraint device comprising: a housing, having a compartment that is accessed through a closure having an aperture formed therethrough of a size sufficient to allow the neck and head of an animal, such as a dog or cat, to pass therethrough; a closure securing mechanism for securing the closure in a closed position; and an aperture size adjusting mechanism for adjusting the size of the aperture while the neck of an animal is disposed within the aperture to a size that prevents the animal from withdrawing its head through the aperture.