This sale is for a used Blackburn Pannier bag. This is a waterproof bag which includes a flap that clips unto the front of the bag. The inside of the bag can be sealed (see photos). There is a zippered front pocket for additional storage. The back of the bag includes a clip on system which is designed for a bike rack. The bag also includes a carrying strap which can be clipped unto the sides (see photos). The bag is approximately 16" x 16" x 3" and will come as pictured, please review all photos regarding the condition of the item.