EXPANDABILITY: The hidden expandable space design of this luggage can increase the expansion capacity by about 20% after expansion, which is equivalent to increasing the capacity of a backpack. With this luggage you can carry anything with ease LARGE WHEELS: The wheels determine the durability of the luggage. This rolling suitcase has upgraded the wheel design with double carbon steel bearings and enlarged Spinner wheels, which are smoother, more wear-resistant and shock absorbing EASY ORGANIZATION: This luggage bag is designed with an interior laptop compartment to safely store your laptop without fear of damage. It is also equipped with a small document strap to organize your important items and documents more efficiently, which is perfect for business trips ENGINEERING DESIGN: This roller suitcase has a reinforced top handle and integrated bottom handles that make it easy to lift and carry your luggage. With the addition of bottom support feet, the luggage will stand up steadily, so you can pack as much as you want without fear of tipping over SECURE AND DURABLE: Expandable travel case provides ample parking space and is made of durable, abrasion-resistant oxford fabric that is fully lined; Equipped with metal cylinder TSA lock, this travel gives you peace of mind when checking in or out Checked-luggage Expandable Luggage Rolling Suitcase