The Edge Marmo ring lock is a high-quality frame lock with an extra-wide opening and the option to attach a plug-in chain. This allows the bicycle to be secured to a fixed object. The lock fits bicycles with tires up to 2.5 inches wide and offers optimal security with an anti-drill cylinder and hardened steel shackle. The lock can be mounted in various ways and comes with two security keys. It is approved for bicycle insurance in the Netherlands and has a security level of 12. Specifications: - Approved for bicycle insurance in the Netherlands (ART2 quality mark) - Maximum security with extra plug-in option - Wide passage opening of 60mm - Internal width of lock: 72mm - Comes with two security keys - The key cannot be removed when the lock is open - Color: Black - Security level: 12