Regarding the transaction: * New and unused * Free shipping * Instant purchase welcome * We will ship within 2-3 days after purchase 【Aluminum Body】Lightweight and sturdy. Waterproof and rust-resistant design, resistant to impacts from bad weather and falls. 【46L Capacity】Can store a full-face helmet. A versatile size for commuting, city riding, and touring. 【Backrest Pad Included】Thick cushion for passenger comfort. Reduces strain on the body even during long rides. 【Secure Double Lock】Fixed in two places, top and bottom. Prevents opening during riding and provides anti-theft security. 【Easy Installation】Includes base plate, tools, and Japanese instruction manual. Easy for beginners to install. 【Safe Night Riding】Reflective tape improves visibility from behind. Designed with safety in mind.