The Natural Rubber Tree Trunk Reward Dog Toy is crafted from rugged and flexible natural rubber, providing a stimulating mental and physical playtime for your furry friend. Your pup can lick and nudge the toy to their heart's content while being rewarded with treats that shake out as they play. The top treat port holds their favorite treats while its concave design and raised outer edges keeps the mess off the floor. This toy is perfect for dogs who enjoy a fun challenge and can easily be cleaned in the dishwasher's top rack after use.