Atlantic Unite 2 21" Expandable Spinner, Black Link2go system connects luggage back to back with velcro straps and roll two pieces with just one hand, or comfortably roll four pieces at once! Locking retractable handle has two stops at 38" and 41", providing a comfortable grip for users of different heights. 360-degree 8-wheel spinners makes for smooth rolling. Built-in zippered wet pocket and adjustable interior hold-down straps External USB port and integrated battery pouch in the carry-on spinner provide convenient access to power for electronic essentials on the move. 21x14x9