● Brand new, unused [Expandable Functionality for Flights & 3-Stage Adjustable Handle] Designed with air travel, business trips, and travel in mind, this suitcase features a zipper-expandable structure. By expanding the width by approximately 5cm, the capacity increases by about 20%, providing peace of mind even if you acquire more luggage or souvenirs during your trip. The lightweight and durable aluminum alloy handle can be adjusted to three stages with a one-push operation to suit your height and usage scenario. [Wet/Dry Separation Storage, Hanging Storage, and Dust Cover Included] Equipped with a wet/dry separation bag for storing wet and dry items separately. Inside, there are convenient pockets for temporarily storing small items, smartphones, documents, and tickets. A dust cover is included for dust protection and can be folded for storage when not in use. [Removable, Braked Double Casters] Durable double casters provide smooth 360-degree rotation for comfortable travel. Designed to reduce vibration and noise during travel, allowing for stable movement even on uneven surfaces. The brake function provides peace of mind on trains and slopes. The casters are removable for easy cleaning, storage, and replacement. [Durable Hard Body & YKK Zippers] The hard-type body combines ABS resin and PC (polycarbonate) resin, achieving both lightness and impact resistance. The main zipper uses reliable YKK zippers, ensuring stable use for a long time. [TSA Dial Lock & 1-Year Warranty] Equipped with a TSA dial lock for peace of mind during overseas travel. Airport inspections can be performed with the lock engaged.