Features My choice of luggage is designed for travelers with comfort, and reliability for convenient travel. Made with a lightweight 100% premium polypropylene(PP) hard shell, ultra light and extra strong material, which makes the luggage durable, and flexible and absorbs impact when under stress. With 4 suitcases of varying sizes, including 29 inch,25 inch, 20 inch and a 12 inch, you can be assured of significant packing space and organizational bliss. Specification - Hard shell premium polypropylene (PP) - It will not crack like cheap AABS plastic suitcases. - Lockable zips. - Extendable handles. - TSA combination lock.