This bag is roughly double the size of our original horn bag and employs a beefy dual-slide #10 zipper enclosure instead of the original single buckle design. Sized to carry a variety of essential items for your ride, this bag can be mounted to both our horn bag platform and our saddlebag platform and works well in either situation. If you own our originals and would like the larger zipper bag, you can easily swap the bags out. These bags are sold individually. Platforms sold separately.