This 4 pc set is made of 1680d nylon. four multi directional spinner wheels rotate 360 degrees for easy maneuverability. this luggage allows you to pack more while avoiding the excess weight surcharges imposed by most airlines. multi-directional spinner wheels for easy maneuverability modern internal aluminum telescoping handle with push button handle. interior mesh and zip pocket and elastic pocket* 3 year warranty * 18"x15"x9" weighs 8 lbs, 22" x15"x9" weights 9 lbs, 26"x17"x10" weight 10 lbs, 30"x19"x11" weighs 12 lbs.