Features: Rolling Ball: The interactive dog ball provides entertainment for dogs. Press the button to activate the ball, which will spin, move, and shake, encouraging dogs to chase and play. High-quality materials: The outer shell is made of environmentally friendly, impact-resistant silicone material that is soft and skin-friendly. It offers strong rolling friction and operates quietly, designed to withstand contact with walls and pets. Dog Activity Rolling Ball: This electric rolling ball features a built-in motion sensor and automatic obstacle avoidance system. When it detects an obstacle or narrow space, it reverses and changes direction to continue play. Rolls quietly: Designed for quiet operation, allowing pets to play at any time without disturbing household members. Three Modes Smart Toy Ball: The interactive ball offers three modes: fast mode, slow mode, and interactive mode. Package Included: 1 x Interactive Rolling Dog Ball Note: 1. Due to differences in monitors and lighting, the actual color may vary slightly from the images. 2. Please allow 1-3 cm measurement variation due to manual measurement. (1 inch = 2.54 cm)