it luggage Megalite Vertica 3 Piece Set, Blue Sapphire, One Size 3 piece set includes a 21.3 inch carry-on, a 27.4 inch medium trolley case and 31.1 inch large trolley case (including wheels and handle) 4 multi-directional spinner wheels that rotates 360 degrees for easy maneuverability Expander system increases packing space by up to 25 percent Special base structure for superior control 19.7 x 11.6 x 31.1