Fixed-code roller lock and bicycle lock with a non-changeable password Key benefits - Keyless security: no keys to lose or forget - Quick access: unlock by entering the preset code - Simple management: share the code with trusted users without distributing keys Important note - This product uses a fixed password that cannot be changed after purchase What this lock does - Provides a reliable code based locking solution for both roller lock and bicycle security - Designed to keep your bicycle secure without carrying keys every time you ride Use scenarios - Daily bike parking: lock your bicycle at racks, campuses, or urban areas and unlock quickly with the code - Shared bikes or rental programs: grant access to multiple users by sharing the single fixed code while avoiding key distribution - Securing equipment or storage: use as a padlock for tool sheds, lockers, or small storage areas where a code lock is appropriate Compatibility and practical notes - Suitable for standard bicycle security applications and common roller lock contexts - Fixed code means you do not need to manage keys or replace lost keys - Ideal for situations where a simple, reliable, non-changeable password lock is appropriate If you need a straightforward, keyless locking solution with a fixed code, this lock provides dependable access without the risk of misplaced keys and without the need to manage changing codes.