Used only once by my dog after purchase last month. After that, he was scared and wouldn't come near it... For anyone who can use it. 【The Latest Rugby-Shaped Fun Play】The first automatic rugby ball in Japan. It stimulates your dog's hunting instincts by bouncing and running in unpredictable directions. In addition, a squeaker (whistle) is built-in, and when bitten, it makes a "peep peep" sound, attracting your dog's curiosity, increasing their interest in play, and helping to relieve stress. 【3 Modes to Keep Dogs Engaged】Equipped with 3 interactive modes: normal mode, passive mode, and gentle mode, which can be switched according to the dog's personality and way of playing. In single-dog households, you can play with your owner or keep them entertained while you're away, and in multi-dog households, dogs can play together, naturally interacting and deepening their bond. 【E-TPU Material Used >>> Performance UP】E-TPU material is used, which is not only environmentally friendly but also gentle on dogs. Not only has the elasticity been improved, but the noise has also been significantly reduced, so you don't have to worry about disturbing your neighbors when your dog is playing. E-TPU is highly resistant to abrasion and impact, and is designed to last even with daily use such as dragging. The lightweight design also reduces the burden on pets, allowing them to play more comfortably. In addition, the cover can be replaced, so when the ball wears out or your dog gets bored, you can replace it with a new cover to regain their interest. 【Obstacle Rotation Sensor - Great Indoors and Outdoors】It automatically changes direction even if it goes under a table or shelf, so you don't have to worry about getting stuck in a corner. It supports stress relief and lack of exercise indoors, even on days when you can't go for a walk due to extreme heat or cold. Furthermore, if you take it camping or on outings, it's a convenient toy that allows your dog to play to their heart's content outdoors. 【For Medium and Large Dogs >>> Prevents Accidental Swallowing!】While many people in Japan keep small dogs, commercially available electric toys are mainly for small dogs, but medium and large dogs need more exercise. Cheerble focused on this point and designed the Wicked Rugby. It's a safe size (76mm in diameter, 131mm wide) that won't fit in their mouth, so you don't have to worry about accidental swallowing or eating, and you can let them play with peace of mind. Furthermore, the random movements and long play time ensure plenty of exercise. It supports indoor and outdoor exercise and stress relief in place of busy owners.