The Stuff'N Wobble interactive ball from Messy Mutts' Totally Pooched line can be filled with treats or kibble for engaging play. Colourful and satisfying to chew, it keeps your dog busy. • Non-toxic rubber that feels soft and flexible yet holds up • Fill it with food or treats for interactive play • Encourages healthy chewing habits • Lightweight and easy to bring along Hours of fun for your dog.