The KONG Dental Stick has a fun design that\'s great for chew sessions and games of fetch alike. Made of the KONG Classic rubber, the toy helps support the natural instinct to chew. The Denta-Ridges help clean teeth and gums and can be filled with KONG Easy Treat for additional enrichment. Durable and safe stick that satisfies natural chewing instincts Dynamic patented Denta-Ridges clean teeth and gums Stuff Denta-Ridges with treats, pastes or peanut butter to extend playtime Made in the USA Available in three sizes: S, M and L