The type of safe that you purchase will definitely depend on your particular needs. Most people do well enough with the lowest classification of protection, because they are just trying to keep documents or a few pieces of jewelry out of sight. You can figure out what kind of safe to buy by checking the letters in the safe name. TL means that the safe is impervious to hand tools, while TRTL refers to torches and hand tools. The TXTL means that the safe is protected from hand tools, torches, and explosives. These will be followed by a number, which states how many minutes someone must work at the safe, such as TXTL-60.