【Exquisite Workmanship】: The chain lock adopts quenching process and hardening treatment with lengthen chain, which has high hardness and better anti-explosion capability. 【Safe to Use】: The bike chain lock adopts high strength manganese steel material, which is anti-smash, prying-resistant and security to use. And it comes with canvas cover, which is wear resistant, sturdy and durable. 【with Double-Sided Internal Milling Key】: The electric scooter anti-theft chain lock with double-sided internal milling key, which has high replication difficulty and it is difficult to open. 【Premium Quality】: This brand new bike chain lock is made of high strength manganese steel + canvas, which is sturdy and durable. It is not easily damaged, has relaible quality and long service life. 【Great Accessory】: The bike anti-theft chain lock is suitable for bike, motorcycle and electric scooter, which is very practical., Manufacturer: Keenso