S size: Paw circumference < 20.5cm,
Suitable for : Teddy, pug, corgi, Shiba Inu, West Highland White Terrier, sheltie, Beagle, and other small dogs;
M size: Paw circumference < 23.5cm,
Suitable for : Golden Retriever, Siberian Husky, Shepherd, Samoyed, Bulldog, Bull Terrier, Chow Chow, and other medium and large dogs.