Silver, Size S (40L/Carry-on) 【Impact Resistant Material & Anti-Theft】① The suitcase case uses high-grade ABS + PC material and an aluminum alloy frame for a three-layer composite pressure-resistant plate that enhances strength and toughness, creating a durable and robust case. The four corners of the edges are protected by aluminum alloy corners and firmly fixed with seven rivets. In addition, the box body is processed using thread-drawing technology, which is characterized by scratch resistance and abrasion resistance. ② Aluminum alloy frame type suitcases are excellent in waterproof and stain resistance. In addition, the opening and closing method with an aluminum alloy frame is superior in terms of safety and theft prevention. 【Two Dial-Type TSA Locks】The suitcase uses the world-standard dial-type TSA lock, which is essential for overseas travel, making it safer and more convenient. *This type of TSA lock is a dial type. There is a keyhole, but no key is included. The keyhole is for airport staff. 【Multi-Stage Telescopic Handle & 360° Silent Casters】Using a thicker aluminum alloy tie rod, the height can be adjusted by pressing a button, allowing you to use it at your preferred height. In addition, it is equipped with high-quality casters that are quiet and durable, can rotate 360 degrees freely, and have excellent stability when turning or traveling on rough roads. 【Size Information】Size S: 36.5 x 22.5 x 55 cm, total of three sides: 112 cm, carry-on size. Capacity: 40 L, accommodation standard: 1-3 nights. Size M: 39 x 23 x 57.5 cm. Capacity: 50 L, accommodation standard: 3-5 nights. Size L: 41 x 25.5 x 62 cm. Capacity: 60 L, accommodation standard: 5-7 nights. Size XL: 42 x 25.5 x 67.5 cm. Capacity: 70 L, accommodation standard: 7-9 nights. Size XXL: 45 x 26 x 73 cm. Capacity: 80 L, accommodation standard: 9-12 nights. *The external dimensions of the product exclude the top and side handles, side fixed legs, and caster marks. Please note that there may be slight errors in the dimension measurements.