The Halti Optifit head collar’s unique design stops dogs from pulling by gently directing the dog’s head so the body has to follow, steering him into desired position just like a horse. Designed to give dogs an optimum fit whatever their face shape with a self-adjusting chin strap that follows the contours of a dogs face. A premium head collar that adjusts to the shape of a dog’s face for an optimal fit. Optimum fit: flexible cheek straps adjust to fit the dog’s face shape. Works even for shorter nosed breeds like boxers. Comfort and Freedom: Padded nose strap for supreme comfort and durability. Highly visible: reflective cheek straps. Secure fit: Sliding camlock allow for customized fitting. Safety clip: Safety clip connects to the dog’s collar for extra security.