This is our original patented product, featuring our proprietary hard-shell, soft-shell design: a nylon shell + TPR soft rubber, making it more tear-resistant, drop-resistant, and impact-resistant than ordinary dog ​​chew toys. The product has a nylon braided leash at the end, allowing owners to hold the leash and let their dogs bite the energy disc, creating an interactive tug-of-war. It can also be thrown a distance for the dog to retrieve, improving physical fitness and strengthening the bond between dog and owner. The serrated and circular surface design effectively cleans teeth and protects oral health.