6 piece luggage set includes 18 inch, 20 inch, 24 inch, 28 inch, a travel duffel bag and a toiletry bag, can be conveniently stored one into another. Lightweight yet extremely durable PC+ABS material (gradient color hardshell). TSA-Approved Locks are used to keep personal items secure. 360° double-spinner wheels assure smooth maneuverability and a quiet ride. Expansion zipper that adds 25% more space (only for 24/28 inch and travel duffel bag). Spacious interior with multiple packing compartments. LARVENDER Luggage Sets 6 Piece, Expandable PC+ABS Hardside Multicolor Suitcase Sets with TSA Lock Double Spinner Wheels, Midnight Berry