The amazing No-Pull Trainer is endorsed by trainers and dog walkers to stop any size dog from pulling while ensuring total comfort and safety for the dog, Stops any dog from pulling without choking. Walking your dog should be a pleasure and not a chore. Your choice of 3 sizes. Small – fit Schnauzers, Poodles, Dachshunds, Pugs and similar sized breeds. Medium – fits Cocker Spaniels, large Terriers, Beagles, Dalmations and similar sized breeds. Large – fits Great Danes, German Shepherds, Rottweilers, Golden Retrievers and similar sized breeds.