The Outward Hound Nina Ottosson A-Maze Ball is three toys in one for interactive fun! Featuring a treat ball, a tennis ball, and a maze ball for a problem-solving challenge and extended play, this puzzle ball keeps your dog busy with a mentally stimulating challenge for unrivaled dog enrichment. As a treat-dispensing dog toy, it is a true boredom buster that will keep your dog busy and entertained, perfect for nose work, scent games, and tapping into natural instincts. What's more, the mental stimulation achieved when solving dog puzzles benefits the body and the mind – just 15 minutes of mental stimulation for dogs is equal to 30 minutes of physical activity. Your dog will exercise while they play, achieve the sensory activation they crave, and release their animal instincts as they "hunt" and forage for dog treats. This helps your dog release stress, channel energy, and minimize boredom-induced behaviors. Great for small, medium, and large dogs, the A-Maze Ball can also be used with a standard 2.5" tennis ball or Outward Hound's medium-sized Squeaker Ballz dog tennis balls. This Level 2 puzzle is fun for all dogs, regardless of age, size, or breed. PLAY BY THE RULES – SAFETY & CARE: When choosing a toy, make sure to choose an appropriate size/style/level for your dog. No toy or game is indestructible. ALWAYS supervise your dog closely, teach your dog how the game/toy works. Do not leave the dog alone with a treat game/toy, do not let the dog chew on the game/toy or pieces. Inspect regularly for damage and remove if broken, or if parts become separated, as serious injury may result. For dogs only, not a children's toy. When empty, store until next supervised use.