This is a highly-rated taillight on Amazon. I've used it for about two years, mostly on weekends. There are no noticeable scratches or stains. The accessories are as shown in the photos. Please mount it on your saddle. Thank you. Here's the Amazon product description: Color: Red Brand: LAOPAO Material: Aluminum Power Source: USB Rechargeable Item Weight: 55 grams Mounting Type: Seat Mount 1. 【Light Source and Illumination Time】: Equipped with 22 high-brightness COB red LEDs, providing 360-degree wide light distribution. The light source is concentrated, with a visibility distance exceeding 100 meters. The reflector alerts vehicles behind when the LED lights are off. Long operating time: Rapid/approx. 50 hours, Breathing Flash/approx. 40 hours, Steady On/approx. 20 hours. (Easy switching with a single button.) ☼☼☼ Due to the high thermal conductivity of metal, it is recommended to park your bicycle in a place where it is not exposed to direct sunlight during the summer. Alternatively, after parking, remove the lamp head to avoid long-term high-temperature damage to the battery. ☼☼☼ 2. 【Brake Warning + Automatic Flashing】: Equipped with a smart chip that detects vibrations. It lights up at maximum brightness when braking while riding. It automatically turns on in situations like dusk. Furthermore, it automatically turns off after 30 seconds of inactivity, which is very convenient. 3. 【Waterproof and Vibration-Resistant Material】: Made of highly sealed aluminum alloy, effectively preventing liquids from entering the machine (IPX65 waterproof), making it great for rainy days. It is lightweight and has excellent vibration resistance. 4. 【Type-C Rechargeable, Battery Level Checkable】: 400mAh rechargeable lithium battery, making it more convenient to use. There are 4 blue battery status indicator lights that intuitively display the remaining battery level. 【Easy Installation】: Two installation methods are possible, making it very easy. The optimal saddle width is approximately 38±2mm, or it can be installed using a strap. Please refer to the Japanese instruction manual.