Feature:1. Gravity induction switch, the heavy object is pressed on the coaster, the light is on, and the light is off when the heavy object is picked up, which is convenient to use.2. Using 3 LED lamp beads, energy saving and environmental protection, colorful flashing, high brightness lamp beads, low light decay, durable and long service life.3. This LED cup mat is safe and environmentally friendly, continuous use, powered by 3 AAA batteries (not included), and long standby time.4. The luminous coaster is made of ABS material, which is durable, drop-proof and crash-resistant.5. Suitable for restaurants, bars, nightclubs, clearing bars, coffee shops, hotels and other places, no matter where it is placed, it is a beautiful landscape.Specification:Item Type: LED Cup MatMaterial: ABSPurpose: Luminous coasterSize: Diameter: Approx. 9.5cm / 3.7in; Height: Approx. 2.3cm / 0.9inProduct Battery: 3 x AAA batteries (Battery Not Included)Light Color: ColorfulMode: FlashingLED Lights: 3 x straw hat beadsSwitch Method: Gravity induction press Weight: Approx. 64 g / 2.3 ozPackage List:1 x Lamp(Battery Not Included)Note:1. Please allow 0‑2 cm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.