This 20-inch carry-on suitcase is crafted from lightweight and durable ABS material. Equipped with a reliable lock, it ensures the safety of your personal belongings and travel essentials during your journey. This expandable suitcase provides an additional 20% storage space as needed. Lightweightly designed with four 360° swivel wheels, it easily glides across various surfaces, from airport terminals to hotel lobbies. The three-stage telescopic handle is fully adjustable, allowing you to find a comfortable pulling or pushing height for a smooth and comfortable journey. Resetting the combination lock is incredibly simple, requiring only a few steps: First, enter the default or your existing combination; then, press the reset hole next to the dial with a sharp object; enter your desired new combination; press the key button to confirm; and finally, turn the dial to test, ensuring your belongings are always secure and that your combination is easy to remember.