Foldable Portable Universal Wheel Trolley Luggage Suitcase, with Combination Lock 1. Folding and expansion design, large internal capacity and no space after shrinking. 2. Adopting precision axle smooth universal wheel, upgraded noise reduction technology, effectively reducing friction coefficient and noise during transportation. 360-degree universal wheel design, can rotate at will. 3. One-piece aluminum alloy pull rod design, multiple sections of height can be freely adjusted, thickened tube wall can withstand high-intensity collision, can bear 160 catties. 4. Made of three layers of PC material, soft, thin, tough, light and resistant to falling. It can quickly rebound and return to its original shape under heavy pressure, the box body is resistant to pressure and not easy to deform, dustproof and waterproof. 5. Three-digit security anti-theft password lock, quick unpacking, convenient and fast. 6. Parameters: a. 20 inches: Dimensions: 34x23x58cm, folded thickness: 9cm Weight: 2.22kg Capacity: 45L Trolley: 3 sections b. 24 inches: Dimensions: 41x24x64cm, folded thickness: 9cm Weight: 2.89kg Capacity: 62L Trolley: 2 sections c. 28 inches: Dimensions: 49x27x78cm, folded thickness: 9cm Weight: 3.85kg Capacity: 103L Trolley: 2 sections