Petrageous Designs, Thinkrageous interactive pet puzzle toys are designed to reward dogs and cats for learining the puzzle. Each plastic puzzle piece reveales a treat compartment that when filled with dog or cat treats becomes an incentive for your pet to learn how to manuever the puzzle for the reward. This is a great interactive toy that will keep dogs and cats entertained and helps sharpen their senses. This pet toy Pet toy measures 9.84 Inch L x 9.84 Inch W x 1 Inch H.