[Luggage that can be brought on the plane] This is a 21-inch suitcase, which meets the airline's standard for taking it on the plane, and you can take it on the plane without checking it. 21inch 15.7" x 9" x 22.2" [USB charging port] There is a built-in USB type charging port, you can put the power bank into the luggage and connect to the built-in interface, so that you can charge at any time without opening the luggage [TSA Customs Lock] TSA Customs zipper lock, sturdy and reliable, gives you more peace of mind. When going through customs, you don't have to worry about the box lock being damaged due to brute force detection. (TSA locks do not come with keys) [Stronger material] The golden ratio composite material of ABS+PC is approved to have the coexistence of firmness and flexabilty [Reliable Support] We provide a two-year support, you can always contact our after-sales team, we will actively solve the problem for you to your satisfaction AnyZip's purpose is to be the world's first-class luggage, to accompany everyone around the world. As a well-known brand, we have the funds and strength to create suitable suitcases for men, women, children and other different groups of people. The AZ101 product is a great innovation: the focus is on the perfect combination of ABS and PC, resulting in a shell that is strong and tough. Sturdiness makes the luggage more durable in use, while toughness makes it less likely to break. As a guarantee for the brand: We provide a two-year warranty, you can always contact our after-sales team to solve your troubles and make you satisfied.