More details specification:
1. Surface material: polyester, nylon and PU with EVA is available
2. Trolley bar: Telescopic internal alloy trolley system
3. Caster: 2 build-in wheels with metal bearing for durable use
4. Lining: Golden silk lining with logo
5. Handle: Metal handle on the top and side
6. Zipper puller: 12# for main puller outside, 10# puller for other parts
7. Lock: Plastic code lock
8. Frame work: Steel wire at two side, and 4cm iron frame to strengthen the bag
9. Quantity warranty: at least 3 years