CGDYCF21 inch hard shell expandable luggage - with universal wheels, black boarding case, travel and business password lock, luggage expansion, wear-resistant checked box, portable business

21 inch boarding case size, suitable for most flight requirements: The precise 21 inch size design meets the boarding case standards of most airlines and can be directly carried onto the aircraft and placed in the luggage rack, avoiding the risk of waiting and losing checked baggage. Whether it's a short business trip or a weekend trip, it can meet the needs of carrying carry on luggage, making travel more flexible and worry free. Hard shell material is drop resistant and wear-resistant, protecting luggage safety: The box is made of high-quality hard shell material, which has excellent impact resistance and wear resistance. It can effectively resist collisions and squeezes during travel, and protect items such as clothing and electronic products inside the box from damage. The surface is smooth and easy to clean, even if it is contaminated with dust or slightly scratched, it is not easy to affect the overall appearance. Scalable design, flexible to handle luggage increase and decrease: The box has expandable function, which can increase storage space by about 20% when the expansion layer is opened. When traveling and carrying more clothes or souvenirs, there is no need to worry about not being able to fit luggage; When used in daily life, the expansion layer is retracted, making the box smaller and more compact, saving storage space, and highly practical. Smooth and silent universal wheels, easy to push: equipped with 4 high-quality universal wheels at the bottom, 360 degree flexible rotation, smooth and unobstructed pushing, easy and smooth steering. Whether in airport lobbies, train stations, or hotel corridors, it can move quietly and smoothly, and even when loaded with luggage, it can be easily pushed with one hand, reducing the burden of travel. Multi functional detail design to meet travel needs: Built in reasonable layered storage space, equipped with clothing straps and mesh storage bags, convenient for sorting and organizing clothes, toiletries, etc. Some styles may come with customs password locks to ensure luggage security and facilitate customs inspections. The height of the pull rod is adjustable, suitable for people of different heights, and the overall design balances practicality and comfort.