DURABLE MATERIAL: Environmentally friendly, hard and solid TPR (Thermoplastic Rubber) can be used for a long time, using high-strength nylon rope, it is not easy to break when pulled hard, and it is resistant to pet bites. MULTIPLE SIZE OPTIONS: Ball diameter 5/6/7 cm (1.97/2.36/2.76 in), multiple sizes are available, suitable for small, medium and large dogs, rope length 30 cm (11.8 in), can be easily thrown go further. It's convenient to carry around for training and to keep in your pocket. HIGH-VISIBILITY COLORS: The interactive rubber balls are available in blue, red, and yellow, and the bright different colors can easily attract your dog's attention. ENHANCING AFFECTION: The dog ball on the rope allows you to play throwing, catching and tug-of-war games with your pet, enhancing the dog's physical coordination, training their IQ, and creating a happy time with you. TOOTH CLEANING: Elastic, chewed, easy to clean, flexible and not easy to hurt the gums, the uneven surface helps to clean the dog's teeth and massage the dog's gums to a certain extent, remove bad breath.