High quality TPR material: the light up dog ball made of high quality TPR material is small, lightweight, safe and not easy to bite and damage the pet's body. Luminous and audible: the light up dog ball has a built-in audible light device that makes the visual effect of the dog more exciting and attracts the attention of the dog. Clean teeth: light up dog ball has been designed with a bulge and can completely rub the bulge on the tooth to promote teeth cleaning when the dog bites the toy. Exercise function: the luminous dog ball has high elasticity, so that the dog can continue to chase. It can train your dog in a happy way and train the dog's agility. Thoughtful gift for pets: light up dog ball can make the tracking of the dog more fun and relieve pressure, making it a thoughtful birthday gift for your pet or a friend's pet. Material: TPR, built-in button battery. The small is 6cm in diameter and weighs 48g. The large size is 10cm in diameter and weighs 124g. Features: bite resistance, luminous, high elasticity, environmental protection, no odor. Function: Collision light, automatically stop light after 11s. Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!