Samsonite Carry On Luggage with Spinner Wheels Hardside Expandable 20-inch. 100% Polycarbonate Micro-diamond texture is extremely scratch-resistant, keeping cases beautiful trip after trip. Re-engineered lightweight Spinner Wheels for effortless mobility. Consumer-preferred expansion on all sizes. Full-zip interior divider and cross-straps for increased packing organization. Side-mounted TSA lock ensures security while traveling. Carry- On size and weight allowances vary by airline.