Durable and Safe: Made with a cutting-edge durable E-TPR Rubber. Durable yet light weight it also floats on water. Great for outdoor fetching games while withstanding strong chewers up to 35 lbs. Please supervise play and remove toy when excessive damage occurs. Durable Chew Toy For Aggressive Chewers up to 35 lbs or use as an interactive fetch toy for larger dogs - Tested and approved by power chewers. Chewing helps your dog to release excessive energy, reduce boredom, anxiety and destructive behavior, also reduce discomfort during puppy teething period. Easy to Clean: Simply rinse with water or place in dishwasher top rack. Measures same as standard tennis ball 2.5’ in diameter. Size Chart: Please make sure this ball (2.5 inches in diameter) is larger than the width of your dog's mouth to avoid accidental chocking or swallowing, proper supervision is advised.