No after-sales service for bad reviews. Do not give bad reviewsany questions directly contact us. friends, pay attention This product needs to absorb light continuously during the day. It will be brighter at night The color of our product pictures shows the effect of glowing at night. During the day, and there will be a certain color difference. For details, see the video. If you have any questions, please contact our customer service first, we will solve it for you Item Details * 100% Brand new and high quality. * Purpose: The valve cap can protect the tire valve from dirt and dust and extend the service life of the tire. It can also be used to replace the broken original valve cap and keep the wheels working well. * Fluorescent Effect: The fluorescent effect on dark roads adds a shiny and luxurious look to your car. Make your night cycling cooler and greater * Durable: Made of high-quality ABS material, dust-proof, waterproof, wear-resistant, and corrosion-resistant. Texture design is easy to hold and use. * Easy Installation: Easy installation without tools. Simply screw it onto the tire valve stem. It s easy to install or remove when you want to check air pressure. * Widely Used: The universal size fits most cars, buses, SUV, trucks, motorcycles, and bicycles, etc., keeping the tires of vehicles at the proper inflating level. Specifications: *Condition: 100% Brand New *Material: ABS + Fluorescent Powder *Inner Diameter: 8mm *Color: Green /Yellow /Blue /Red *Quantity: 8pcs Package Contents: 8pcs * Universal Fluorescent Car Tire Valve Cap Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data.