100% TSA Approved locks are approved by TSA (Transport Security Administration) and Travel Sentry. If transportation security officers need to inspect your bag, they can open the lock using a master key without causing damage. This helps protect your suitcase from forced entry during screening. 140mm long shackle with a 3mm diameter provides extended reach, making it suitable for securing items through small openings. Ideal for locking backpacks, luggage, and zipper pulls. The extended shackle allows multiple zippers to be secured together for added security. Constructed with durable zinc alloy materials, including a zinc alloy body and locking mechanism. The lock features an eco-friendly coating process for enhanced durability. Resistant to impacts and drops, offering reliable protection for your belongings. Equipped with a 4-digit combination mechanism offering 10,000 possible combinations. Provides increased security compared to 3-digit locks. Set your own personalized combination with no keys required, eliminating the risk of key loss. Suitable for a wide range of applications beyond luggage. Can be used with backpacks, gym bags, suitcases, briefcases, closets, tool bags, laptop bags, and other personal items during travel or daily use.