Features: This portable bicycles lock features a secure four digit password systems, eliminating the need for keys and offering enhanced thefts protecting for bikes with its durability zincs alloys cores and thicken PVC coating. Designed with a flexible 122cm steel cable, compact 7x9x2.5cm size, and optimized slimming lock head for easy helmet hole insertion, it ensures versatile locking and enduring resistance to rust and wear. Ideal for busy commuters, children, and women, this lock solves key forgetting issues and provides a comfortable, a hand grip for everyday use. Perfect for daily cycling commutes, outdoor, and securing helmets during rides on motorcycles, mountain bikes, or e bikes in various weather conditions. Its innovative password lock combines high security with portability, allowing quick setup in under 5 seconds for reliability gear protecting during active lifestyles. Specifications: Color:Two Choices Dimension:92×70mm/3.62×2.75in Component:alloys Package Includes: 1pc Password helmet lock note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you will not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.