Using the Basil MIK Double - Decker Adapter Plate is easy. First, if your MIK panniers have a pre - mounted MIK adapter plate, you can directly attach the double - decker to the bridge of the panniers. Or, if you need more space behind the saddle, you can move it 4 centimetres to the rear and then mount it. When you want to use other MIK accessories, just put them on top of the double - decker. As for maintenance, keep it clean and dry. After each use, check if the mounting parts are loose and tighten them if necessary. Avoid exposing it to harsh weather conditions for a long time. And when not in use, store it in a cool and dry place.