Multi-setting design: These light-up car coasters come with 7 stunning color patterns and 3 dynamic modes, including single color light, color, and breathing light. Simply press the button on the back to easily change the color and patternWidely used: Not only does it simplify the process of placing cups while driving, but this light-up car coaster can also enhance the beauty of the interior and elevate the ambience. Get creative with its versatile design to create a romantic atmosphere for your journeyAuto-on: Utilizing light and vibration sensors, this coaster can illuminate your drink in the dark and turn off after 15 seconds without vibration or excessive lightWaterproof: These light-up car coasters are made of sturdy materials, including IP67 waterproof coating and sturdy acrylic, which guarantees long life and unbreakable. In addition, they are equipped with waterproof LED lights, which are perfect for long-term useGreat choice as a gift for friends: These light-up car coasters will impress your friends and family to enhance their driving experience. They show that you care and bring elegance to any vehicle.