The Gentle Leader Training System quickly controls jumping, pulling, barking, chewing and begging. It even teaches sit and stay in one easy lesson. The Gentle Leader Head collar allows owners to communicate with their pet in a way that dogs instinctively understand. The nose loop encircles the dog"s muzzle and applies light pressure in the same manner in which lead dogs naturally communicate with dogs lower in rank. Because of the placement of the nose loop, the dog immediately understands its place in the hierarchy and recognizes the owner as the leader. With the Gentle Leader, when you steer the dog"s nose, you steer the dog"s body. It"s virtually impossible for a dog to drag you down the street when its head is turned to face you. The Gentle Leader Training System comes with Head collar, 4-feet Leash, 10-feet indoor Drag Line, a 66 page Training Booklet, and a training DVD.