【Carry-on Size】Dimensions: 55.5 x 36 x 23 (expandable +5) cm, Total dimensions: 114cm, Carry-on size. Capacity: 40L (expandable to 49L), Suitable for 1-3 nights. 【Expandable Function and 3-Stage Adjustable Pull Bar】Zipper type, the capacity can be increased by 20% just by expanding the gusset width by 5cm. You can rest assured even if you have more souvenirs at your destination. The lightweight and sturdy aluminum alloy caliber can be adjusted in multiple stages with a single button press to suit your height and usage scenario. 【Removable, Brake-Equipped Shock-Absorbing Casters】Silent, durable dual-wheel casters, achieving smooth gliding while also allowing 360-degree free rotation. Because special soundproofing material is used, the rattling sound is reduced by about 30% compared to ordinary casters! It reduces vibrations on uneven roads and also has a brake function. In addition, the wheels are removable, making cleaning and storage after use easy, and repairs are also easy if damaged. 【Dry and Wet Separation Bag & Hanging Storage & Free Dust Cover】The bag that can store wet and dry items separately can store wet items, and there is a 5cm expandable pocket between the layers at the zipper, which can temporarily store small items, mobile phones, documents, tickets, etc. Free dust cover: Dustproof specification, can be folded when not in use. 【World Standard Safety】Equipped with a TSA dial lock, which is essential for overseas travel, making your outings safer. *The key is for airline inspection only and is not included with this product. 【Supervised by a current flight attendant & planned by a Japanese company】Suitcase Carry-on S size 40L with expansion function & stopper, ultra-lightweight carry bag carry case business trip travel business 1-3 nights Black Color: Black系 (Black-based) Carry case size: S (up to 3 nights)