A tri-star shaped toy unlike anything else in our range to date! The Brain Teaser has 4 connection points to attach other toys and 6 bone shaped holes to be used with our Puzzle Treats. There are also grooves that can be smeared with peanut butter and pastes on the front and back of the toy which helps keep your dogs teeth and gums clean. Like other toys in the Pro range the Brain Teaser is suitable for stronger chewers and is made from a durable TPR material.