Material: plastic Key benefits Improves nighttime safety: reflective panels and builtin lights increase your visibility in lowlight conditions and help reduce the risk of accidents. Fast, hassle fit: designed for quick and simple setup and effortless installation; the reflectors require no extras and mount easily. Versatile placement: suitable for use as rear bike reflectors and for mounting on bicycle racks, mountain bikes, strollers, or similar applications. What makes this product useful Clear visibility: the luminous design combines reflective surfaces and lights to make you more noticeable to drivers and other riders at night. Simple compatibility: built to fit a range of mountain bike models and common bicycle rack and stroller mounting points, so you can reuse the same reflector across different equipment. Straightforward operation: no complex assembly or additional components needed, so you can install and start using the reflector right away. Typical applications Night commutes: attach to the rear of your bike or rack to increase visibility during evening rides on streets and bike lanes. Offroad or mountain biking: mount on compatible mountain bikes to maintain visibility when riding trails at dusk or in lowlight conditions. Evening walks with a stroller: clip or attach to a stroller to help make your position visible to motorists and pedestrians. Features summary Material: plastic Function: reflective panels plus lights for enhanced nighttime visibility Compatibility: fits various mountain bikes, bicycle racks, strollers, and similar mounting points Installation: quick and simple; requires no extras Use these reflectors wherever added rear visibility is needed to help others notice you and reduce the chance of nighttime collisions.