Delsey Helium Fusion 25" Expandable Suiter Trolley-Red Unbelievably lightweight and fully featured Depth is expandable by 2.5 inches (to 12.5 inches to allow for additional packing space Recessed locking Trolley handle with easy access push button to lock and release Lightweight fiberglass graphite frame, the same material that is used in the construction of golf clubs and tennis rackets Main material is constructed of durable 1800 Polyester with EVA foam backing