Brand new, unused item. ^ ^ Large Capacity & Versatile Design: Available in three sizes: 36L, 45L, and 62L, suitable for touring, deliveries, and everyday use. Waterproof and dustproof specifications allow for safe use in bad weather, making it a reliable rear box for long-term use. Easy Detachment Design: Using the dedicated mounting base, it can be easily attached and detached without tools. It's a convenient design that even beginners can handle smoothly. Design with Nighttime Safety in Mind: High-quality reflective stickers are used to ensure that following vehicles can clearly see it even in dark places. It enhances visibility during night riding and supports safety with a reassuring design. Comfortable Riding Support: Designed with a backrest to reduce strain on the body and fatigue even during long rides. It's designed with the rider's comfort in mind, allowing for relaxed riding on tours and long rides. Secure Anti-theft Measures with High-Strength Aluminum Alloy Key: Equipped with a sturdy high-strength aluminum alloy key to securely protect your important luggage.