100% TSA Approved locks are approved by TSA (Transport Security Administration) and Travel Sentry. If the transport security officers want to access your bag, they will use their special key to open the lock. Your suitcase will not be forced open to avoid damage 140mm Long Shackle140mm long and 3mm wide shackle, which is better for locking things through small holes . You can lock small luggage such as backpack through the zipper hole. And due to the longer length, it is available to multiple zippers together for more safety Durable Alloy Materialadopt eco-friendly paint process, zinc alloy shell , zinc alloy lock core, which is delicate and durable. High-strength zinc alloy can withstand drops and knocks without damage. It's safe and reliable protection for your luggage and lockers 4-Digit Passwords4-digit passwords offer 10,000 different password combinations. TSA luggage locks are three times more secure than other locks with a 3-digit password. You can set any number as the password combination, and no one knows the password except you. No key needed, so you don't have to worry about the risk of losing the key Wide Range Of Applicationslocks can be used for a variety of items except luggage or suitcases. They can be used while traveling with your suitcase or backpack or at home, at school, at the gym or on your backpack. zipper, luggage, gym, briefcase, closet, tool bag or laptop bag etc.