The WEST BIKING Foldable Bike Chain Lock is a durable and portable steel bicycle lock with a 78cm cable length, providing high security for your bike. Made with zinc alloy, alloy steel, and ABS plastic materials, this black lock is designed with a key mechanism for easy access. The compact size of 7.5*6.6*5.5cm makes it convenient to carry around, and the sturdy construction ensures that your bike is protected from theft. The foldable design and included bracket make it easy to store when not in use, making it a practical accessory for any cyclist.