Ultra lightweight expandable 4-wheeled polycarbonate 2 piece luggage set includes a 20 Carry-on: 20 x 16 x 9.25, (8.2 lbs; 28 Upright: 28 x 21.65 x 12.2 (12.4 lbs. * Fully recessed push button internal trolley system * Unique expansion provide an additional two inches when needed * Four wheel system allows you to tow your case in three different ways and makes traveling easier * Polycarbonate shells offer high impact protection