Kroeus trolley luggage is the best partner for traveler,businessman,student,etc with its attractive appearance and its lightweight,durable,practical feature! Product Specification Material:ABS plus PC Lock:customs TSA lock Color:silver,black Size:20",24",29" Product Configuration *Absorbing the advantages of anti-strike,heat resisting ABS resin and wearable PC with good tenacity,this luggage is lightweight,durable and impact resistant. *TSA combination locks allow the US Transport Security Association to inspect your luggage without having to damage your locking mechanism or the luggage. *Top and side handles which automatically return the original position when released enhance your comfort to carry the luggage and bear a heavy weight. *Protective bumper corners added on the shell can protect case from damage caused by items you put in the corner and enhance case's durability. *Scientific dislocation of skid proof foot-pads make case more balanced and protect shell from rubbing with the ground. *Ergonomically high- aluminum hinges are highly resistant to external shock. *Detachable clapboard,zippered mesh pockets and strong cross straps with buckles on them make the luggage inside very organized and structured. Note *The 20" luggage can be carried on the plane and 24" and 29" ones need to check in.Please check the detailed requirement of relevant airlines before taking a plane. *It is very common that the trolley sways around 0.39inch to extend the lifespan.An absolutely fixed trolley is easy to be broken after long-term use. *There is protective film on the shell which is common in mirror finishing technology to protect the case during transportation.The case will be more showy after tearing off protective film. Please feel free to contact with us if there is any question.We will reply to you within 24 hours.