I am really impressed with these pen cases. I am forever digging in my purse for a pen, and having a dedicated case for pens would be a real time saver for me. I prefer the Lookout because it appears to be sturdy, capable of carrying a variety of pens/pencils, and the color would definitely make it easy to locate in my purse. I make Crayon rolls to be sold in the local railroad museum gift shop. The rolls are secured with a hair/pony tail band/ring which is sewn into the side of the roll. A closure like this could be considered because it’s soft yet strong, and is durable.