Features1According to the principle of light source refraction, the direct light from a distance is returned to the lightemitting place, has a good retroreflective optical effect all time. 2Under the action of scattered light, the bright light of its own color is reflected, so that the the cyclist is easy to see, plays a good warning effect. 3This product has a variety of different colors, showing a dazzling and colorful riding life. 4It is a good embellishment and night protection, it provides a great guarantee for the riding safety of cyclists. 5Portable and lightweight, take no burden to your bike wheel, easy to install and detach, make your bike special.SpecificationItem Type: Bicycle Spoke ReflectorMaterial: ABS+Reflective FilmLength: Approx.75mm/3.0inInner Diameter: Approx. 1.8-2.5mm/0.07-0.10inOuter Diameter: Approx.5mm/0.20inPackage List12 x Bicycle Spoke Reflector