This leather roofing pouch was designed for quick clip-on use. The back has two belt clips for easy snapping on and off. The main pocket holds six coils of nails, enough to do six bundles of shingles. It comes with a tape measure clip and a mini crowbar holder attached to the side. There is also room to clip on a knife holster beside the tape measure clip. Many roofers have multiple pouches, loading some with screws for metal roofing or for repair jobs. The pouches can be quickly removed and attached allowing you to have the proper tools and fasteners for each job without having to empty and reload your pouch. With the genuine leather, copper rivets, and reinforced seams, this pouch can stand up to a lot of hard use. The pouch measures 9.5" high, 8.5" wide, and about 1.5" deep. If you have any questions, feel free to ask!