Blackstone Chain Bike Lock with 130 dB Alarm Heavy Duty 10 mm 4 FT chain with Six-sided Hardened Manganese Steel

Blackstone chain lock is an ultra-strong used independently approved 10mm metal chain with hardened steel construction. As well as being an extremely secure lock, it has a built-in alarm triggered by movement sensors. There are two ways to lock, one is to lock with alarm, and the other is to lock without alarm. This Heavy Duty Chain uses a special anti-corrosion coating which makes it ideal for outdoor use; it also features a nylon sleeve against scratches to bicycle, motorcycle surfaces. Blackstone Security Alarm Chain Features Six-sided shaped links, much more effective against attacks from bolt cutters, saws, hammers, and chisels. It passed the Golden Bicycle Test approval, which stands for the best quality.

Blackstone chain lock is an ultra-strong used independently approved 10mm metal chain with hardened steel construction. World's Only 120db Loud Alarm System will automatically activate upon sensing any vibration or shock and is loud enough to scare off thieves. Loud Alarm System provide Maximum Protection for e-Bikes Electric Bikes Scooters & Motorcycles Blackstone Security Alarm Chain Features Six-sided shaped links, much more effective against attacks from bolt cutters, saws, hammers, and chisels. It passed the Golden Bicycle Test approval, which stands for the best quality. The Alarm Chain lock comes with 3 keys. One of them you can take and use in daily life and the others you can leave at home in case the trouble. Also It comes with key replacement Code card from which we can help you to equip a new key when you lose them all. The package includes: 1 Alarm Chain Lock, 1 CR2 lithium battery, 3 keys, 1 bag.