Bloopow Motorcycle 6.7mm Disk Lock Alarm Bicycle Alarm 110db Loud Waterproof Anti-theft with Rope Reminder -- Motorcycle shield Alarm lock for bicycle 110dB loud waterproof before the theft with a rope reminiscent of the product of the Product: Waterproof anti -theft zipper of . It works by locking the disc brake, the mechanical lock cylinder is rigorously designed and is very difficult to unlock without a key.2. The operation is simple and convenient, click the locking cylinder, it will be locked.3. Support early warning function, if someone touch the lock, alarm will sound.4. With waterproof function, it can work in rainy days without rusting.5. Universal anti-theft lock kit for motorcycles, scooters, bicycles, etc. Package includes Motorcycle lock (with battery) * 1 Locking rope (reminder rope) * 1 Key * 2 Bag * 1 L-shaped screwdriver * 1