Material: plastic Color: red, yellow, blue, green, orange, pink Why does your dog need a high-quality dog ball? 1. Training ball, training special competition activities 2. Interactive entertainment between pets and their owners to increase feelings 3. Distract attention, remove anxiety, stabilize pet emotions 4. Pet exercise to promote pet health Why do you need a shiny dog ball? Visible, easy to use at night Use suggestions: 1. When using for the first time, the insulating sheet inside the battery needs to be pulled out, and then activated by movement. When activated, just bounce the ball to shine. 2. Vibration will flash for 20 seconds. After 20 seconds, it will automatically turn off, saving electricity and protecting the environment. Battery replacement: 1. Use a coin or a multi-purpose tool, etc., and remove the battery pack cover with the knob. 2. Pull out the battery assembly from the rubber cover and remove the old battery. 3. After installing the new battery, put it in the kit and turn the knob back to the original position again Floating on the water, can be used as water sports props Cruising time: 35 hours Using battery: two CR 2032 Waterproof level: IPX8 Size: Diameter L 72mm, M 61mm, S 53mm Vibrate once: it glows for 20 seconds and then automatically goes off