When a Small Rolie Bag is mounted to your tank, this map pocket mounts to the bag, just like a regular tank bag. This map pocket is slender so not to hinder the inner thighs. (For Medium and Large Rolie Bags, use the Map Pocket for Large Rolie Bags.)  This map pocket is the same as that on the Enduro and the Small Expedition Tank Bags. The mounts are unique to the Rolie Bag System.  Dimensions: Overall: 5 �? Wide X 9? Tall Viewable: 3 7/8? Wide X 7 7/8? Tall  Kit contains: One Small Map Pocket 2-Small Rolie Bag Map Mounts Mounting Instructions and Hints.