Product Description Material: TPR Size: 5.5cm Quantity: 4pcs Package Content: 4 * cleaning cloth 1. [Material]:The luminous interactive dog ball made of high quality silicone, BPA-free TPR, durable and studied, soft, bite resistant and easy to clean. 2. [Size]: The diameter of the ball is 5.5cm, which is a little smaller than a normal tennis ball. easy to carry, super bright colors are great for engaging with your dog day or night, soft, suitable for playing in the yard, house, park or shore 3. [Flashing Ball]:The ball will glow when touched and last for 10 seconds, attracting dog’s attention. Even in the dark, your dog could play with the flashing ball happily, because the flashing light could tell the dog where it is. 4. [Elastic dog ball]: The elastic dog ball can let the grumpy dog keep running, not only let the dog exercise happy, but also train dogs’ agility, encourage them to exercise , help them stay healthy and strong 5. [Interactive Pet Toys]: They can play with the LED