KONG Knots Belly is soft and cuddly on the outside with a strong, durable rope ball on the inside making its belly round and weighty. This dense internal skeleton rope ball adds heft and movement that entices instinctual thrashing, flinging, and light chewing. A squeaker in this gorilla's head piques dogs' interest and adds excitement to play sessions. Knots Belly Gorilla is also ideal for dogs who like to carry their toys, as well as for naptime snuggles. Have fun watching which way your dog likes to engage with this multifunctional toy!