The Nina Ottosson by Outward Hound Dog Tornado interactive dog puzzle is a fun way to enrich your dog's playtime and get them excited about problem-solving games! This Level 2 Intermediate dog puzzle keeps dogs busy with treat-focused challenges that stimulate your dog's senses and tap into their natural instincts to hunt and forage for food. As a result, our dog enrichment toys provide mental and physical exercise, help relieve stress, and reduce boredom for happier, healthier pups. The Dog Tornado features two tiers with eight treat-hiding compartments you can fill with your pup's favorite dog treats to motivate them to solve the puzzle. Watch your dog use their brain to sniff out the treats, then spin the layers to uncover the hidden rewards! Since all dogs are unique, you can vary the level of difficulty of this dog food puzzle to meet your dog's problem-solving ability, with multiple ways to make it easier or harder for your pet – two bone treat compartment covers are included to increase the challenge! Moreover, this dog treat puzzle is easy to clean and made from food safe materials that are BPA, PVC, lead, and phthalate-free for your convenience and peace of mind.