Pack of 2, Solar LED Car Cup 2-in-1 Function: Drink Glass Bottle Cup Coaster Mat & LED RGB Atmosphere Lamp, convenient and safe to be used as a cup holder in the car, also good for car Interior decoration Light and Motion Sensitive: The cup mat will automatically turn on with a blue light at dark when it feels vibration, and turn off after about 15s, make it easier to find the drink slot Two ways charging: just leave them in the Sun or plug in the micro-USB charger (Included); IP67 Waterproof, No worry about damage by water in the daliy usage Diameter: 6.5cm/ 2.6inch, universal for all kinds of vehicles that come with cup holder, good for long car rides at night, look fantastic in the cup holders Easy to install, no tools or wiring needed; Made of high quality Acrylic and Energy-saving LED wick, have the right amount of brightness, not eye blinding that'll distract the driver, just enough for decorative purpose