The Corona Mr. Pockets has all the great features of Marsee tank bags, mounted with the innovative Corona Mount. Simplistic in execution, the bottom Corona is bolted to the outer ring of the motorcycle fuel cap. The upper Corona is bolted to the bottom of the tank bag. To operate, simply place the upper Corona on the bottom Corona at about 8:00 push down then twist the bag to 12:00 and the 4 top magnets engage with the bottom 4 magnets and the bag is secure! This bag is also expandable to add an additional 4 inches in height to the bag. Rain cover included.Dimensions: 14" long x 12" wide x 6" high