This spinner is made from extremely lightweight Curv material with an incredibly strong, shock-absorbing shell design. Samsonite is the only manufacturer of travel products worldwide that utilizes Curv technology. This concept for thermoplastic materials is extremely light and offers exceptional impact resistance. The shell shape and woven layering process are patented by Samsonite. The integrated TSA-approved lock provides additional security when checking in your luggage. Four spinner wheels with airflow make it easy to roll an upright suitcase. The single-tube handle with a push-button lock can be adjusted to different heights. A divider and cross straps ensure the security of your belongings.