I had to send it back as it was unassembled. Right in the center is a long screw with a plastic channel about 1/2 inch high and 2 inches wide (the screw goes through the center of this channel) on the side opposite the valve. I assume you can attach the bag to the handlebars, fairing, etc. with the screw on the outside. The leather straps were not long enough for my bike. The material turned out to be of good quality with a strong velcro closure. There will be enough space for a large smartphone and goggles or gloves and a small water bottle. It's thicker than it looks in the photos. It would be much more helpful if all motorcycle luggage had photos from all sides from different angles so you can see what type of mounting hardware is on the back/bottom. I couldn't find any other photos on the manufacturer's website either.
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