The fast, effective and humane way to eliminate barking, lunging, leash pulling, begging and jumping from your dog’s repertoire. The nose loop fits loosely and comfortably around the muzzle (we tested it on our 6-month old golden, to make sure it was comfortable). Neck strap fits high and snug, enabling you to apply pressure similar to that of a mother lifting a puppy by the scruff of the neck. When you apply gentle pressure to the leash, your dog will pull backward, not forward—no more leash pulling, choking or gagging! Proven effective for dogs of any age. Colors: Red. Black. Royal Blue.