Starmark Treat Crunching Multiball Dog Toy Starmark Mental Stimulation toys keep pets mentally and physically engaged and help prevent destructive boredom behaviors. The Treat Crunching Multiball is a fun chewing challenge for your dog. It holds an Inserted Treat Rod. It provides hours of challenging play and it also floats for fun water play. The Inserted Treat Rod is designed to break as your dog chews, releasing small pieces as a reward. Made with virtually indestructible material, it is ideal for more experienced chewers. It comes in two sizes, so you will easily find one that is perfect for your best friend.