The Nina Ottosson by Outward Hound Dog Worker puzzle dog toy is a challenging level 3 puzzle game that will keep your dog busy for hours as they use their instincts to hunt for hidden treats. This advanced interactive dog puzzle game has 3 steps that your dog will need to learn to get to the tasty rewards. Hidden compartments are under the flippers and the center wheel. Available in multiple colors. Made with no removable pieces from a BPA PVC and phthalate-free composite material.Outward Hound Tan Worker Puzzletoy