Features:
100% Brand new and high quality!
Traditional chains， padlocks and U Locks only do half a job and can be pretty easily removed by those who know how
But even the sight of this alarm will have even the most determined of thieves thinking twice.
If your bike is moved， the alarm will spring into action and give off an ear-shattering shriek for 30 seconds.
No thief will want to hang around when this alarm goes off.
I\'m sure so
powerful function must can protect your bicycle effectively.

Specifications:
Quantity: 1pc
Condition: Brand new
Casing Color: Silver
Size: 58mm*63mm
Suitable for bike tubes with dia within 3cm
Sound: 100db

Package includes:
1 * Alarm
1 * Mount
2 * Screws