The 20” Carry-On Cart & 25" Vertical Pullman expand for additional packing capacity, two front zippered pockets and spacious interior with adjustable sturdy tie tapes and buckle closure. A top accessory hook to attach an additional bag , retractable handle system with molded handle grip and In-line skate wheels on bottom with protective bumper guards. The Shoulder Tote has a top zippered opening, adjustable/detachable shoulder strap , double web carrying handle and a front gusset zippered pocket.