Solid invincible-looking design will deter thieves. Attaches to the disk making it extra difficult to remove without the key.The disc lock alarm sound is able to reach to 110 db.Weatherproof, mechanical lock core is rigorous design so that technical opening is very difficult.Attractive, chunky chrome design. Heavy duty for top security.Suitable for Motorcycle, electromobile, bicycle. Suitable for disc brakes with a thickness of up to 7mmFirmly locked security lock. Light weight and easy installation.Package comes with a screwdriver for replacing batteries conveniently.