Smellyufo Long-Lasting Interactive Treat Dispensing, And Wobble. [DOG TOYS MUST ATTRACT DOGS' ATTENTION] SNIFFIZ SMELLY UFO is guaranteed to keep them busy and entertained by using TREATS MOVEMENTS. Simply fill the UFO with your dog's favorite snacks. The smell of the treats and the funny movements of the toy will immediately grab your dog's attention! [1 UFO GAME = 1 HOUR WALK] The tempting smell of the treats will make your dog roll, shove and chase the toy around to get to the treats on the inside. This way, SMELLY UFO will keep your dog mentally stimulated and physically active. The game will help your dog relax and relieve stress when he is home alone. It is a literal boredom buster! [MENTAL STIMULATION - from PUPPY to SMART DOG] SMELLY UFO is an IQ toy that stimulates your dog's brain, helps him learn, and trains his problem solving skills. You can change the level of difficulty and make the puzzles progressively more challenging. [ADJUSTABLE OPENING] You can decide how long your dog will be playing by adjusting the size of the treat dispenser. Since this treat holder toy has 2 extra large maze chambers(EASY/HARD), even slow feeding and long playtimes are possible. When you need to leave the house, simply fill both mazes with snacks to keep your dog busy and make the game a real challenge. [MORE THAN JUST TOUGH] Including sample tests with 20+ breeds, great efforts have been made to achieve maximum durability. Rubber-like materials (developed exclusively for the UFO BODY) and high-strength hard plastics make SMELLY UFO a long-lasting toy.