Material: ABS (acrylonitrile butadiene styrene)_x000D_ Multiple uses: toys, feeders, trainers, slow food bowls, etc._x000D_ Suitable for: cats, dogs and other animals 1Food Reward Machine: No need of electricity, automatic feeding, easy to use. 2Exercise toy: It can help your pet stay healthy and energetic. 3Interactive toy: When the dog inserts the ball into the ball rolling machine, the food is released and your dog will love it very much. 4Takes less space: easy to place indoors or outdoors, suitable for any corner. 5Mini size: 6cm elastic tennis ball, suitable for pets of different ages.1x Tennis Ball Rolling Machine _x000D_ 1x Standard Tennis Ball _x000D_ 1X User manual1. Due to many factors, such as the brightness of the display and the brightness of the bulb, the actual color of the product may differ from the image on the website._x000D_ _x000D_ 2. Measurement data may be slightly biased. Allow 1-3 cm erro