- Reinforced structure: high-density zinc alloy forms a protective shell around the brake disc lock is internal components. The shatterproof shell maintains structural stability during impact and prevents internal damage. - Effortless bicycle protection: designed with user friendly operation, the lock combines a 4 digit keyless password with a quick press to lock function for instant securing. The streamlined release process ensures quick access. - Maximum theft protection: thousands of code variations and reinforced mechanisms deter unauthorized use and deliver high security performance for motorcycle protection. - Reliable performance: built with anti rust materials for harsh weather. Dust proof housing protects internal mechanisms while waterproof barriers shield against rain damage. - Use scenarios: - Park a bicycle in busy urban areas or campuses to protect the front disc with the 4 digit password and quick lock feature. - Secure a motorcycle during short stops in parking lots or service areas where access is restricted. - Use outdoors in rain or dusty conditions; anti rust, dust proof and waterproof design maintains reliability.