Durable and PetSafe Green Shell: The ball features a shockproof thickened green shell that has been rigorously tested for drop and bite resistance. It is made with nontoxic, BPA materials, safe for chewing and intense play. Suitable for all energetic pets: Designed for small to mediumsized pets who love to chew. Its irregular movement attracts pets of all sizes, while the durable construction withstands enthusiastic play day after day. Smart Obstacle Avoidance and Irregular Movement: The automatic moving ball uses advanced sensors to enable unpredictable zigzag motion and instant obstacle avoidance, turning playtime into an exciting chase and stimulating your pet's natural hunting instincts. Easy to carry on the go: Compact and lightweight, this mobile pet toy is ideal for onthego use. The small size is easy to carry, allowing interactive games and entertainment with your pet while walking or traveling without taking up much bag space. Use scenarios: Indoor solo play: The ball moves autonomously, keeping your pet engaged and active when you're nearby or short on time. Outdoor walks or travel: Take it along on walks, in the yard, or while traveling; its compact form fits in a bag and provides activity anywhere. Training and enrichment: Use to encourage chasing, stimulation, and problemsolving, supporting healthy exercise and mental engagement.