The Premier Gentle Leader HeadCollar for Dogs is great for dogs that tend to pull, lunge or jump while walking. It provides gentle, immediate control over your pet and never chokes him or her. The Premier Gentle Leader HeadCollar for Dogs is not a muzzle, so your pet can eat, drink and play as normal. It’s comfortable for your dog and never falls off due to the adjustable nose loop. In fact, it’s so comfortable your pet can wear it up to 18 hours.