Well-designed: This dog puzzle toys are carefully designed based on actual using scene of dogs. Each bone-shape cover has ventilation holes to stimulate the dog to smell and learn to explore it. This engaging dog treat dispenser provides a fun physical & mental challenge. Training artifact:Each dog puzzle toy contains 9 dog bone-shape covers. You can adjust the difficulty according to the actual reaction of your dog, you can place lids on up to nine food holes to the most difficult level. Extra large hole is both suitable for small, medium and large dogs EASY TO CLEAN:This dog enrichment toys is easy to clean with mild soap and warm water by hand-wash. Make sure all compartments are dried before using. BPA, PVC & PHTHALATE FREE AND Durable: Designed with your pet's health in mind from food safe materials that you can trust. Our interactive dog toys are produced with 15% more materials and 15% heavier than similar products to increase dualability. NWT - Ships quickly from a smoke free home. Purchase with confidence from a verified 5 star seller. Thanks for checking out my listing! New to Poshmark? Sign up using closet code JSANCLOSET to receive $10 off your first purchase.