If you purchase multiple items from #at広場 at the same time, I will offer a discount if you comment before purchasing. Multiple of the same item are also acceptable. This is a tail light (rear light) for road bikes, cross bikes, mountain bikes, etc. The items for sale are all shown in the last image. This is NOT a CATEYE product. Instructions, packaging, and box are not included. It is a USB rechargeable type that can be used repeatedly. The red lamp indicates charging, and the green lamp indicates charging is complete. I will not fully charge it before shipping, so please charge it yourself. This tail lamp does not protrude from the seat post, making it aerodynamic and aesthetically pleasing, and is highly recommended. ☆ At this price, it offers high specs and long-lasting illumination/flashing for a USB rechargeable type. The brightest illumination time is about 3 hours. The most power-saving illumination time is about 11 hours. The slow flashing time (brightest light) is about 8 hours. *All values are actual measurements. For reference, this type of light made by K○○TO EYE (4900 yen on Amazon) has a brightest illumination time of 1 hour. You can see the difference when you compare them. This product is okay for some rainy days, but it's best to avoid using it in heavy rain. Avoid putting it underwater or washing it with water. Maximum 100 lumens (catalog value) Lithium battery 500mAh (catalog value) Weight of the light body and necessary mounting parts: 26g Ideal for hill climbs, long rides, gran fondos, cloudy days, and night riding. Can be installed on various manufacturers such as Specialized, Cannondale, TREK, MERIDA, GIANT, Bianchi, PINARELLO, COLNAGO, etc. This product is not a CATEYE or Garmin product. Although it is a new product, due to being a foreign product, there may be minor scratches, scuffs, or burrs from the manufacturing process that do not meet quality standards. It will be shipped in a brown envelope without cushioning material. If you are concerned about this or are particular about details, please refrain from purchasing. Like general household appliances, please avoid overcharging or charging while wet. #at広場 offers a wide range of affordable products, including camping gear, sports equipment, road bike parts, Garmin products, bicycles, commuting items, and products recommended for those who are working from home or lacking exercise due to the coronavirus pandemic.