Toolless assembly fits bicycle handlebars with a 22-32 mm diameter. It uses two non-slip rubber gaskets to increase friction and fix the mirror lens to the holder, enabling secure, tool-free attachment to any handlebar. 360-degree rotatable lens with an optimised housing that is attached with double screws. Two additional seals ensure a secure, tight fit after installation. Multi-angle adjustment allows a wider viewing angle to reduce neck strain and improve rear visibility while riding. Safe cycling with a clear rear view helps you monitor traffic behind you, which is especially important as some motorists may be distracted. Compatibility and performance: designed to fit standard handlebars, with robust mounting and adjustable alignment for reliable rear visibility in various riding conditions. Use scenarios: - Daily city commuting, at intersections and in traffic, to monitor vehicles approaching from behind. - Road riding on busy routes or group rides where awareness of riders and vehicles behind you is useful. - Mountain biking on narrow trails where seeing followers or approaching riders behind is beneficial. This description preserves the original specifications and functions while presenting clear, customer-focused benefits and practical use cases.