The Double Clip Leash aids in teaching your dog to heel. If your dog is large and reactive your best means of teaching attentiveness is to use both a Front Connect Harness and a Halti Such as The Comfort Trainer. The Double Clip leash can be attached to both devices giving you POWER STEERING! When your large dog tries to pull back, you use the harness to urge him forward. When he becomes reactive or forges ahead you use the head halter to redirect.
**When you graduate to needing only one training device the end of the Double Clip Leash turns into a handle.**