describe: A must-have for safety This is a great decoration for your bike and a must-have protective gear for night riding, especially in autumn and winter. At night or in bad weather, it will reflect light and issue a safety warning, improving riding safety and reducing the risk of traffic accidents (Note: This is a reflective strip that does not emit light by itself and requires an external light source. ) One size spoke reflector is designed to have a length of 80 mm/3 inches, an inner diameter of 1.9-2.4 mm, and an outer diameter of 5 mm. Please confirm size before purchasing. There are 48 pieces of reflective sheets in total, suitable for most types of bicycles, such as mountain bikes/folding bikes/kids bikes/road bikes/etc. You can even host DIY bike shows that are safe and fun. High-Quality Materials The bicycle reflective clip is made of high-quality ABS tubes and reflective coating film, which is durable and not easy to fade. The waterproof and lightweight properties allow it to be used in wet weather without adding any burden to the bike. Gray is stylish and simple, so it is very light and beautiful. High Visibility Our bicycle spoke reflectors can reflect light in low light conditions and are clearly visible even at a distance of 400 meters. Bike wheel reflective tubes provide 360-degree reflection and improve lateral visibility, ensuring riding safety in dark and adverse weather conditions. Reflectors themselves cannot reflect light and require external lighting. Easy to install There is a groove on the side of the bike clamp, no glue required, no special fasteners or any tools required. Just push the spoke reflector on the spoke and press it down gradually. When you want to replace your bike reflective clips or no longer need them, just pull them out. Installation and removal are very easy for anyone. Packing contents: 24 pieces