【Carry-on Size】Dimensions: 55.5×36×23 (5cm expansion) cm, Total linear dimensions: 114cm, Carry-on compliant. Capacity: 40L (49L when expanded), Recommended for 1-3 night trips. 【Expandable and 3-Stage Adjustable Pull Handle】Zipper type allows for a 20% capacity increase by simply expanding the gusset by 5cm. Peace of mind even if you buy more souvenirs on your trip. The lightweight yet sturdy aluminum alloy pull handle can be adjusted in multiple stages with a single button push to suit your height and usage scenario. 【Removable, Shock-Absorbing Casters with Brakes】Silent and durable double casters provide smooth rolling and 360-degree free rotation. Special sound-absorbing material reduces rattling noise by approximately 30% compared to regular casters! Reduces vibration on uneven roads and is equipped with a brake function. Furthermore, the wheels are removable, making cleaning and storage easy after use, and repairs simple in case of damage. 【Wet/Dry Separation Bag & Hanging Storage & Free Dust Cover】The wet/dry separation bag can store wet items. There is a pocket that extends 5cm between layers at the zipper, allowing for temporary storage of small items, mobile phones, documents, tickets, etc. Free dust cover: Dustproof and can be folded when not in use. 【World Standard Safety】Equipped with a TSA combination lock, essential for international travel, making your outings more secure. *Keys are for airline inspection only and are not included with this product. 【Supervised by Active CA & Planned by Japanese Company】Carry-on Suitcase S Size 40L with Expansion Function & Stopper, Ultra-lightweight Carry Bag, Carry Case for Business Trips, Travel, Business, 1-3 Nights, Black Color: Black Stains/Tears: None Features: Carry-on compliant