Secure your ride with confidence - This reflective chain bicycle lock uses a four digit combination for reliable security and peace of mind when you leave your bike unattended. Enhanced night safety - The highly reflective cover adds style and, more importantly, greatly improves visibility at night to help keep you safer on the road. Broad compatibility for most bikes - Suitable for road bikes and mountain bikes, this portable lock offers excellent compatibility and is a versatile accessory for all cyclists. Durable and weather resistant - Made with nylon fabric and a steel chain, the lock is designed to withstand harsh weather conditions and daily use without sacrificing performance. Use scenarios - Quick errands: Park outside a cafe or shop and secure your bike with the four digit combination while you run a short errand. - Daily commute: Leave your bike secured outside work or campus for a few minutes or longer during a shift or class. - Night riding or dim areas: Park in locations with limited lighting and rely on the reflective cover to improve visibility for added safety.