ONE STEP Rear Box Top Case Pannier Case Large Capacity Aluminum Mounting Base Included Full Face Compatible Bike Box (ALL BLACK 55L) 55L waterproof rear box, perfect for motorcycles with a backrest. - Brand: OneStep - Model Name: ALL BLACK 55L - Capacity: 55L - Waterproof: Waterproof - Included: Backrest As of 8/26 Amazon price: 17,480 yen Thank you for viewing. This is a new, unused item. I purchased it intending to install it on my motorcycle, but it was too large for my bike, so I am selling it. All accessories are included. The stays and metal fittings are unused. Although it is in almost new condition, it has been handled by a person, so please consider purchasing only if you understand this.