- Safety Design: The Rockbros Helmet Lock features a robust 0.8-inch locking body, offering superior resistance against cutting. Its durable construction effectively prevents scratches with a protective PVC coating. - High Scalability and Reinforced Steel Cable: This lock includes a flexible chain that extends up to 60 inches, allowing for versatile locking options. The reinforced steel cable ensures excellent protection against cutting and theft. - Versatile Use: Ideal for daily use, this compact cable lock can secure a variety of items including helmets, bicycles, car wheels, suitcases, doors, and stairs. Its versatility makes it an essential accessory for your belongings. - User-Friendly Operation: The lock features a 4-digit code that is easy to customize. Simply adjust the code by turning the lock collar according to the user guide. It allows for quick locking and unlocking, making it convenient to use. (Tip: Take a photo of your code for easy reference.) - Lightweight and Portable: Weighing only 100g (0.2lb), this cable lock is incredibly lightweight and easy to carry. You can easily hang it on your bike handlebar, store it in your bike bag, or even slip it into your pocket. This Rockbros Helmet Lock combines security, flexibility, and ease of use, making it a practical choice for protecting your valuable items.