This specially engineered training tool teaches your dog to walk right, making the experience enjoyable for you and your dog.

X-Small  fits collar size 10-13" Snout Size 4-5"

Small     fits collar size 13-17" Snout size  4-6"

Medium  fits collar size 14-19" Snout size 5-7"

Large     fits collar size 15-20" Snout size 7-9"

X-Large  fits collar size 17-24" Snout size 9-12"

XX-Large fits collar size 22-30" Snout size 12-15"