Suitcase Carry Case with Expansion Function, Carry-on Luggage, Carry Bag with Cup Holder, Large, Quiet, Double Casters, Impact Resistant, 360-degree Rotation, Lightweight, Anti-theft Zipper, TSA Lock, Business Trip, School Trip, Travel (Black, S) Expandable & Large Capacity Type: Simply twist the zipper around to increase the capacity by 20% (S size only), providing more storage space, especially convenient for long trips or returning after shopping. *Note: Cannot be carried on board after expansion. The spacious interior can accommodate anything from short business trips to long trips. It has a partitioned design that makes it easy to organize clothes, shoes, accessories, cosmetics, gadgets, etc., allowing for efficient storage. Product Specifications: S size: 37 x 22.5 x 55.5CM, Capacity: 46.2L, Net weight: 3.15KG, Accommodation estimate: 1-4 nights, Total dimensions: 115cm, Carry-on allowed. Multi-functional and Practical Carry Case: ① Comes with a convenient folding drink holder. You can place a back cup holder, milk tea cup, or umbrella anytime, making travel more convenient. ② Equipped with TYPE-C and USB charging ports, you can charge your electronic devices anytime. ③ The suitcase handle can be used as a smartphone stand, freeing up your hands during flight waiting times, allowing you to relax even when you're out and about. ④ The ergonomic handle design won't tire you out even after holding it for a long time. TSA Lock & Silent Casters: The suitcase is equipped with a TSA customs lock, a keyless dial lock, set a 3-digit password, and you no longer have to worry about losing your key. It meets international security inspection standards and can ensure the safety of your belongings. The carry case adopts high-elastic and shock-reducing material casters. The 360-degree rotating 8-wheel double casters are quiet and extremely durable, and can run smoothly even on uneven roads. High-Grade Resin ABS+PC Material: ABS resin is lightweight, elastic, and resistant to cracking, while PC (polycarbonate) resin is excellent in impact resistance and insulation. The combination of both materials creates a high-quality hard-type body with high durability.