The SmartyPaws Tumbler Mushroom puzzle toy helps to entertain and reduce boredom in your dog while teaching them pup problem solving skills. Simply fill with your dog’s favorite treats or kibble, pop on the top, and watch them try to open it up!4-in-1 enrichment toy includes the following features:Treat Dispensing - holds 1/2 cups of kibble in the body and the holes in the cap allow them to fall out at a slow pace.Stick Treat Holder - Stick your dog's favorite treats like carrots or bully sticks through the assorted holes. Hole size varies from 0.5”-1”Lick Toy - Under the mushroom cap are textured lines that are perfect for spreading peanut butter or yogurt for a long-time lickable treat.Freezable Treat Toy - Freezable for prolonged treat and play time.