Eco-Conscious Choice: Our self-rolling ball dog toy is crafted from harmless and eco-friendly TPR soft rubber material. You can maintain hygiene by easily washing off dirt and dirts with water after removing the shell - a toy that loves your pet and the environment. Intelligent Dual Design: Divided into normal and smart modes, the self rolling ball dog toy is designed to adapt to various cat games. Once turned on, it starts moving and vibrating at different frequencies, which helps activate cats' hunting instincts and keeps them engaged. Funny Play: Repeated side jumps and a simulated prey escape track rolling in random movement routes continuously attract your pet's attention. The smart stay feature stimulates cats' interest in toys, making this self-rolling ball dog toy an absolute must-have. Intuitive Automatic Functionality: Our self-rolling ball cat toy features a smart timer function, keeping your cat's activities balanced. The toy automatically shuts off after 5 minutes of playtime in normal mode and goes into standby mode after 5 minutes of inactivity in smart mode. Stop Destructiveness: Our self-rolling ball dog toy is your solution to energetic pets. It consumes their energy effectively via high-frequency interaction with playtime lasting up to 180 minutes. Forget about your pup's destructive tendencies and let them play without damaging your home.