HOD HEALTH AND HOME Australia has been operating online and instore for 8 years. All products come with a 1 year warranty, fast shipping and special offers added to our site daily.. Need more than 1? Get a bulk buy discount up to 20% off This Is A Durable And High-Security Electronic Anti Theft Bicycle Lock. Alarm Device Reminds You To Pay Attention To Your Bike Whenever Anybody Trying To Steal It Easy To Operate Perfect For Mtb Motorcycle Racing Bike Motorbike And So On. Features: Solid And Thick Can Bear No Matter What Kind Of Cutting And Provides The Highest Level Of Security. Built-In Anti-Theft Alarm Device Warns You Whenever Anybody Tries To Steal The Bike. Sealed Water-Proof Brake Disc Lock Protects Inner Structure Can Be Used In Rainy Days No Worry About Getting Rust Or Broken. The Lock Core Is Equipped With Anti-Drilling Piece Which Can Automatically Close To Prevent Drilling Or Breaking. Has A Stretchable Reminder String Reminds You To Unlock Won't Damage The Brake Disc Accidentally. Specifications: Material: Aluminium Alloy Lock Size: 8.7 * 5.7Cm / 3.4 * 2.2In Package Weight: 600G / 21Oz Package Size: 12 * 18.5 * 6Cm / 4.7 * 7.2 * 2.3In Powered By: 6 X Batteries (Not Included) You Will Receive: 1 X Brake Disc Lock