Foldable Portable Universal Wheel Trolley Luggage Suitcase, with TSA Combination Lock 1. ABS+PC material, lightweight and pressure-resistant, can rebound quickly when encountering external force. Scratch-resistant surface, durable. 2. Folding and expansion design, large internal capacity and does not take up space after shrinking. 3. 360-degree universal wheel design, silent and wear-resistant, smooth and not stuck. 4. Aluminum alloy pull rod, sturdy and durable without shaking. 5. Waterproof shell material, not easy to get wet inside. 6. Three-digit TSA customs lock, multi-country universal exit is more convenient. 7. There is a storage bag on the side to place your umbrella or water cup and other items. 8. Parameters: a. 20 inches: Dimensions: 34x23x58cm, folded thickness: 13cm Weight: 2.5kg Capacity: 45L Trolley: 3 sections b. 24 inches: Dimensions: 41x24x64cm, folded thickness: 13cm Weight: 3.1kg Capacity: 62L Trolley: 2 sections c. 28 inches: Dimensions: 49x27x78cm, folded thickness: 13cm Weight: 3.95kg Capacity: 103L Trolley: 2 sections