Bike Chain Lock with Keys, 3.3 Feet Security Heavy Duty Anti-Theft Bicycle Chain Locks for Bike, Motorcycle, Bicycle, Door, Gate, Fence, Grill (6mm, 8mm, 10mm Thick Chain)

Secure & Portable: The key can only be pulled out after the bike chain lock is locked, which prevents the key from being lost. bike lock comes with 2 keys. You can take one of the keys to use in daily life, and you can leave another key at home in case you accidentally lose one

• Heavy Duty & High Quality: With 8mm thicker security heavy-duty chain links, our bike lock is made of heavy-duty steel known for its cut-resistance. Lubricate the bike chain lock hole and keyhole regularly, this will prolong the lock's service time
• Protective Cloth Sleeve & Dust Cover: Chain is enclosed in protective cloth sleeve, which effectively protects the bike lock chain from rusting and scratching