Size Guide:
Small: Dogs 5-25lbs, Breeds like Frenchies, Pugs, and mini breed mixes.
Large: Dogs 25-75lbs, Breeds like Labs, Shepherds, and Poodle mixes.
X-Large: Dogs 75lbs+, Breeds like Bernese Mountain Dogs and Mastiffs.
Superchewers - order one size up for greater durability.