The Puzzle'N Play mushroom from Messy Mutts' Totally Pooched line is an enrichment toy designed to challenge your dog and stretch out playtime. Fill it with raw food, kibble, peanut butter or banana for a tasty puzzle. • Freeze it for a longer-lasting challenge • Flat bottom makes it easy for your dog to hold in place • Built to last through play, rewards and mealtimes An easy way to keep your dog busy and engaged.