Night Vision Optimization Utilizes reflection technology to improve cyclist visibility to rear vehicles, reducing accident risk and supporting safe rides in poor lighting. Handy Installation Integrated elastic clip with a sturdy bracket blends to different saddle contours, secures edge connection, and maintains vertical alignment for reliable mounting and presentation. Convenient Versatility Combines night driving safety with mountain track performance. Reliable for road bikes, training, and commuting across a wide range of bicycle applications. Structural Stability Shatterproof construction with weatherresistant material provides protection against damage and deformation in all weather conditions for longlasting outdoor use of the bike. Use scenarios Evening city commute on poorly lit streets: enhances visibility to drivers behind you for safer travel. Mountain or gravel rides at dusk or dawn: secure mounting supports stable performance and continuous visibility. Training rides in rain or cold weather: weatherresistant design helps protect the unit and maintain function during outdoor workouts.