Durable aluminummagnesium alloy shell Constructed from standard aluminummagnesium alloy for hardness, strong toughness, and pressure resistance. Protects contents from impacts and deformation while maintaining a lightweight profile. Stable multisection aluminum alloy pull rod Multisection telescoping pull rod made of aluminum alloy with a thickened pipe wall. Reduced shake and improved stability under load; resists strength impacts while remaining lightweight and sturdy for frequent use. Integrated TSAapproved dual combination lock Builtin TSAapproved dual combination lock secures your belongings and allows Transportation Security Administration personnel to open the bag for inspection without forcing it open. Combines convenience for travel inspections with reliable theft deterrence. Silent 360degree universal wheels Durable, silent wheels that rotate in 360 degrees for smooth, unobstructed movement. Enables easy upright rolling, responsive turns, and quiet navigation through busy terminals or streets. Practical benefits Protects belongings from rough handling and external pressure thanks to a rigid alloy body. Improves travel comfort with a stable handle system and whisperquiet, multidirectional wheels. Speeds up and simplifies airport security inspections while keeping luggage locked against unauthorized access. Typical use scenarios Business travel: Smooth, quiet rolling and a stable telescoping handle make navigating airports, hotels, and city streets faster and less fatiguing while maintaining a professional appearance. Family vacations or group trips: The strength alloy shell and impactresistant handle withstand repeated handling and transfers between vehicles and terminals. TSA inspections or international travel: The integrated TSAapproved dual combination lock lets security perform inspections without damaging the bag, saving time and preserving the lock mechanism. Key attributes Material: standard aluminummagnesium alloy body; aluminum alloy multisection pull rod with thickened walls. Lock: Builtin TSAapproved dual combination lock for secure, inspectionfriendly travel. Mobility: Silent, durable universal wheels with 360degree rotation for easy upright maneuvering. Performance: hardness, strong toughness, pressure resistance, low shake amplitude, impact resistance, lightweight construction. This combination of rugged alloy construction, stable handle, secure TSA lock, and silent omnidirectional wheels delivers reliable protection, easy handling, and smoother travel in everyday and demanding travel situations.