You are buying a brand New Halti Training Harness Simplifies Training Make Dog's Behavioral Therapy Easier S - M Stylish Harness for Effective Behavioral Therapy Comfortable for dogs Simplifies training Makes behavioral therapy easier Calms over-boisterous dogs Made Specially for: Dogs of all ages Size Breed X-Small - 0: Toy Poodle, Yorkie Small - 1: Jack Russel, Whippet Medium - 2: Beagle, Collie Large - 3: Boxer, Labrador X-Large - 4: Mastiff, Great Dane XX-Large - 5: Bloodhound, St Bernard Suitable for: Afghan Hound, Airedale, American Cocker, American Staffordshire, Australian Cattle Dog, Australian Shepherd, Basenji, Basset Hound, Beagle, Bearded Collie, Bedlington Terrier, Belgian Shepherd, Border Collie, Boxer,Briard, Brittany Spaniel, Bull Terrier, Bulldog,Chow Chow, Cocker (English), Dalmatian, Dobermann, Elkhound, English Setter, Flat Coated Retriever, Foxhound, German, Shepherd, Golden Retriever, Greyhound,Hungarian Vizsla,Irish Setter, Irish Water, Spaniel, Keeshond, Kerry Blue Terrier, Labrador Retriever, Lurcher, Munsterlander, Pharaoh Hound, Pit Bull, Pointers, Poodle Standard Rough Collie, Saluki,Samoyed, Schnauzer, Shar Pei, Shiba Inu, Siberian Husky, Soft Coated Wheaten, Springer Spaniel, Staff Bull Terrier, Weimaraner