HALTI Headcollar size 1 - Black

I've included relevant sizing info below- but Size 1 seems like a safe bet for a miniature schnauzer. How to Measure: Using a flexible measuring tape 1) measure the circumference of the thickest part of the dog's snout, which is closest to the base of the head; 2) measure the circumference of the dog's neck starting at the point directly behind his jaw. Small Snout: 5" retracted to 12" extended Neck: 6" retracted to 12" extended Examples: Westie, Jack Russell, Yorkie, Border Terrier Medium Snout: 8" retracted to 15" extended Neck: 6" retracted to 17" extended Examples: Labrador, German Shepard, Boxer, Doberman, Retriever Large Snout: 10.5" retracted to 17.5" extended Neck: 6" retracted to 24" extended Examples: Rottweiler, Great Dane, Newfoundland, Large German Shepard Size 0 is recommended for the following breeds: miniature dachshund, papillon, toy poodle, yorkie, and similarly sized dogs. Size 1 is recommended for the following breeds: border terrier, jack russell, cairn terrier, welsh corgi, standard dachshund, sheltie, westie, whippet, and similarly sized dogs. Size 2 is recommended for the following breeds: beagle, border collie, cockers, saluki, schnauzer, standard poodle, basenji, Welsh terrier, and similarly sized breeds. Size 3 is recommended for the following breeds: Afghan, airedale, boxer, briard, chow chow, dalmatian, doberman, greyhound, German shepherd, husky, Labrador, pointers, retrievers, setters, springers, Weimaraner, and similarly sized dogs. Size 4 is recommended for the following breeds: mastiff, clumber spaniel, giant schnauzer, Great Dane, Newfoundland, ridgeback, rottweiler, and similarly sized dogs. Size 5 is recommended for the following breeds: bloodhound, large danes, mastiffs, St. Bernard, and similarly sized dogs.