No Pull Device Type	Example Brands**	How it Works	Pros / Cons	Our Rating*
Front Attachment Harnesses	Freedom Harness Easy Walk Harness Halti Harness Walk Your Dog with Love Harness Kurgo Seatbelt Harness with No Pull Ring Front Range harness by Ruffwear Linden Harness SENSE-ible	When your dog pulls, pressure is applied along his chest and shoulders, which turns him back towards you and makes pulling less productive and rewarding.	Pros: Effective for most dogs. Dogs generally don't mind them. Easy to put on. Cons: Can cause chaffing if not fitted properly. Both the Freedom Harness and the Halti Harness have padding to prevent that. Dogs can slip out of some of these if not fitted properly or a back up attachment is not used.	9 out of 10
Head Collars or Head Halters	Gentle Leader Comfort Trainer Head Halter Halti Optifit Snoot Loop Canny Collar NewTrix	The leash is attached to the dog's nose. When your dog pulls, it turns his head back toward you similar to the way a horse's halter would. Some head halters attach to the back of the dog's head. In our testing, we found these to be less effective, but some people like that they do not cause the dog's spine to curve at all.	Pros: Best for very strong pullers and aggressive dogs since it gives you control of the head. Cons: Takes some training for most dogs to get comfortable wearing. It seems possible that a dog could strain his neck if he were to pull into a head collar very hard. (We recommend using a 4 - 6 foot leash).	8 out of 10 for the Gentle Leader, Halti Optifit and Comfort Trainer
Bungee Leashes, Elastic Leashes, Shock Absorbing Leashes	Xtreme Leash Leash Shock Absorber Bungee-Pupee Wacky Walkr	When dog pulls, the leash expands and reduces the force of the dog on the leash.	Pros: Easy to use. Reduces the force of the dog's pull somewhat. Makes walks more pleasant as it reduces the force on the leash. Cons: May not teach your dog to stop pulling. Important to choose a leash with the right amount of tension. It can feel difficult to control your dog if you get a bungee with unlimited stretch or until you get used to the way it stretches.	Rating depends on the quality of the bungee leash. We give the Xtreme Leash and Leash Shock Absorber a 6 out of 10.
Harnesses that tighten under the front legs or around the belly	ThunderLeash Sporn Harness Holt Harness Mendota EZ Trainer Lead Lupi Harness	When the dog pulls, a cord or strap tightens around the belly or "armpits" causing discomfort or upward force to discourage pulling.	Pros: Pretty easy to put on and the dog doesn't generally mind wearing them. Cons: Some dogs can get acclimated to the pressure similar to the way they ignore collar pressure. Training can help prevent this. We prefer harnesses that have a limit to how much they can tighten.	3 out of 10 for most. 6 out of 10 for the ThunderLeash
Choke Collar / Check Collar / Training Collar		When the dog pulls, a cord or chain tightens around the dog's neck which is unpleasant and discourages him from pulling.	Pros: Dog doesn't generally mind having it put on. Cons: Can constrict to a dangerous degree and cause throat damage. Doesn't reduce pulling very effectively.	1 out of 10
Limited Slip Collar, Limited Choke Collar or Martingale Collar		When the dog pulls, a cord or chain tightens around the dog's neck which is unpleasant and discourages him from pulling. (When fitted properly the collar will not tighten down enough to choke.)	Pros: Dog doesn't generally mind having it put on. Prevents escape due to backing out of the collar when properly fitted. Does not choke when properly fitted. Cons: Not very effective at reducing pulling in most dogs and puts a lot of pressure on the trachea if the dog pulls. Can be a good regular walking collar for dogs that do not pull or as a back up for a harness.	3 out of 10 (For reducing pulling it is not that effective but it is a good collar for other purposes such as preventing escape.)
Pinch Collar or Prong Collar (Metal or Plastic)	Herm Sprenger Good Dog Collar	When the dog pulls, the points on the collar come together to pinch the skin on the neck causing discomfort and discouraging pulling.	Pros: Dog doesn't generally mind having it put on. Effective at reducing pulling for most dogs. Cons: Most brands are difficult to take on and off. Can cause irritation to the neck area. Can break apart. Can make sensitive, fearful or aggressive dogs more fearful or aggressive.	2 out of 10
Noise Maker that Attaches to the Leash	Wonder Whistle	When the dog pulls it activates a whistle which discourages the dog from pulling.	Pros: We like to use this product as a reminder to the human to stop walking so that the dog is not successful in pulling. Cons: Dogs don't generally find the whistle to be much of a deterrent, but very sound-sensitive dogs may find the whistle frightening.	5 out of 10