Product quality: The suitcase is made of new ultra-thick PC+ABS hard shell material, making the suitcase more impact-resistant, lighter and more durable. 3-layer PC structure, the box is resistant to pressure and not easily deformed. 4 rubber silent universal wheels adapt to various surfaces, and the 360° movement is very smooth. It has strong and smooth zippers, shock-proof computer compartment, and USB security interface. Front-opening design, you can stand and take out items without laying them flat, and you can quickly unpack and take frequently used items at any time Whether it's a business trip or airport shipment, it can help you always stay calm. The digital area of the cabinet has built-in sponge wrapping protection, which can accommodate a 15.6- inch laptop without fear of collision. More labor-saving loading experience, changing the traditional packing method of closing the two sides, reducing the load on the side opening, making opening and closing more labor-saving and faster. External USB charging socket allows you to walk more intelligently and is connected by one line, saying goodbye to the tediousness of holding a mobile power supply while walking. Humanized hook design: Free your hands and carry it with you when traveling. Not afraid of collisions, the rounded corners are designed to better protect the box from collisions. Cup holder expanded application: Can hold water cups and umbrellas; when not in use, place it in a closed and folded state.