Eco-conscious Choice: Our self-rolling ball for dogs is made of harmless and environmentally friendly TPR soft rubber. You can maintain hygiene by simply washing away dirt and mud 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 for dogs is designed to adapt to different cat games. When turned on, it starts moving and vibrating at different frequencies, which helps activate the cat's hunting instincts and keeps them engaged. Fun Game: Repeated side jumps and a simulated prey escape track that rolls in random motions continuously attract your pet's attention. The smart linger function stimulates the cat's interest in toys, making this self-rolling ball for dogs an absolute must-have. Intuitive Automatic Functionality: Our self-rolling ball for cats has a smart timer function that keeps the cat's activities balanced. The toy will automatically turn off after 5 minutes of playtime in normal mode and enter standby mode after 5 minutes of inactivity in smart mode. Stop Destruction: Our self-rolling ball for dogs is your solution for energetic pets. It effectively expends their energy through high-frequency interaction with playtime lasting up to 180 minutes. Forget about your puppy's destructive tendencies and let them play without damaging your home.