For some of you who don't uinderstand how this security bag works, you pull the braided wire making the mouth of the bag smaller. Near the end of the pull a metal bead shows up on the wire. Pull this bead through the big hole and then put your padlock on. Now the bead is locked out and the bag's mouth cannot be opened. Comprendo? The bag itself is reinforced with braided wire netting inside the black tough fabric. I now loop the wire through my luggage handle, around a solid furniture, and lock it. Now I don't have to carry my small bulky and heavy army bullet box on my travels. I converted it into a safe with parts from a hasp lock that you screw onto shed doors. Used to get dirty looks from the TSA whenever they see this big metal box's white shadow in my carry-on. Lotsa fun! This bag is a very smart invention. Thank you Pacsafe. Thank you Amazon for selling this product. It will definitely make a great travel gift for anyone.