I needed a 0.001 feeler gauge to work with my revolver and couldn't find it at the local store. This set was the size I needed and the price was affordable. It was packaged in a double zipped pouch within another padded sleeve and large padded envelope. The gauges have been soaked in light machine oil which makes them easier to unwrap as they are very thin and tend to stick together. The individual sensors are removed with a thumbscrew and this system works very well. When storing, you can tighten it to keep the sensors from bulging or bending. I will keep them with other finer tools for gunsmithing and other small jobs.