Airline Approved:The size of the 20 inch carry on luggage is 14'*9"*20",meets carry-on requirements for most major airlines and stays secure with a TSA-accepted combination lock.Whether it's a short-term business trip or a quick getaway,this luggage ensures a smooth travel experience. Aluminium-Magnesium Alloy:Alloy corner reinforcement at the corners,make the appearance harder,and the color brighter.No need to worry about bumping during the journey,it's the ideal companion for a hassle-free trip. Zipperless Design:Secure latches replace traditional zippers,eliminating security concerns and stuck zippers.You can easily get every thing from the carry on lauggage.lt will facilitate travel and business trips and provide security when checked belongings during international travel. TSA Lock:TSA-Approved locks for secure travel,which only allows agents to inspect your bags without damaging the lock.And it can be quickly opened in 1 second. Dry Wet Separation:Luggage is designed with a durable,water repellent,and lightweight.With two large compartments and smart dry wet separation pocketsprovides ample space for your belongings. 360° Dual Spinner Wheels:360° smooth-spinning dual wheels adapt to various road surfaces gravel roads,mud roads,stairs,grasslands,and beaches,accompanying you to any corner. Occasions:The products perfect for short & long vacations,back to school or college,business trips,family outings and many other scenarios. HOW DO I RESET THE COMBINATION LOCK?1.The lock is set to (0-0-0) at the factory.2.Press down the button by a tool,set the new combination (e.g.:4-4-4),then pull the square part.3.Release the reset button and your code is now set.4.Scramble the dials and test your new code to be sure the correct one is set.