This 4 pc Set is made of heavy denier polyester. 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 5 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.