Slip Dog Collar Size: Dog Types:
• Small fits 10-13" necks beagle, boston terrier, cairn terrier, corgi, frenchie,  westie, scottish terrier, etc
• Medium fits 14"-17" necks basset hound, boxer, bulldog, german shepherd, husky, labrador, standard poodle, etc
• Large fits 16-19" necks bull mastiff, great dane, newfoundland, rottweiler, saint bernard, etc


Still not sure of your pet's neck size? Don't worry, it's easy to find out! 
Use a measuring tape and gently measure around your pet's neck -- leave room for two fingers to fit comfortably between.
Don't have a measuring tape? No problem! Instead, use string (shoelace, ribbon, etc) to measure around your pets neck - don't forget to leave enough room for two fingers to fit between - then measure against a ruler.