TSA APPROVED: The luggage lock is accepted by the TSA, allowing TSA inspectors to unlock luggage using an official security key. With the ZHENGE TSA combination lock, the lock must be re-secured before the key can be removed, ensuring your belongings remain protected. If the lock has been opened, a red indicator will pop up to alert you when you retrieve your bag at the airport. EASY HANDLING: Setting the code is simple with the flip-and-set button located on the bottom. Instructions are included on the back of the packaging. High-contrast white numbers on black dials make it easy to read. Features an advanced damping mechanism that clicks into place with each dial turn, improving alignment accuracy. This user-friendly TSA lock is suitable for travelers of all ages. SAFE & ROBUST: The 4-digit TSA combination lock offers 10,000 possible combinations, providing greater security than a 3-digit lock. Constructed from high-strength zinc alloy, the lock is durable enough to withstand demanding travel conditions. The slide-open design is advanced and unique, offering strong resistance against tampering and forced entry. FLEXIBLE CABLE: The flexible cable fits through standard zipper pulls on suitcases, backpacks, travel bags, briefcases, and other cases. With a total length of 5.5 inches, the reinforced cable can secure 2-3 sets of zippers simultaneously, helping protect the entire bag. This TSA-approved luggage lock also works well as a padlock for gym lockers, school lockers, drawers, toolboxes, and cabinets. GUARANTEE: Each suitcase lock includes a 12-month warranty and lifetime technical support. Our professional customer service team is available 24/7 to assist with any questions. Buy with confidence.