ThinkPet Rubber Dog Chew Toy Durable Teeth Cleaning Treat Dispensing Toy Chew Toy - Satisfy your dog's natural urge to chew,help them fight boredom and reduce destructive chewing behaviors Teeth Cleaning Toy - Textured bumps on the rubber dog toy help to keep teeth clean and massages gums,remove the plaque and tartar,reduce the breeding of bacteria and freshen the breath Treat Dispensing Toy - Hollow design,can stuff treats and peanut butter, stimulate dog's interest and appetite,keep your dog mentally and physically stimulated Durable Rubber Toy - Made of durable natural rubber, allowing eager chewers to chomp heartily, exercising and strengthening jaw muscles Medium Dog Toy - 4.1 Inches by 2.5 Inches,suitable for medium dogs