I use these envelopes to store my monthly paperwork for my gas station/convenience store business. The clasps really help keep everything in place and they ar big enough that all my paperwork that I keep stored are easy to get to if I need to look back and retrieve anything. All 12 envelopes fit in a heavy duty box that I keep stored in a records room at my business. Each envelope is clearly marked with the right month and since the emvelopes are a solid color it makes it very easy to pick the right month.
Once you seal this envelope it does not come undone like some of the other brands. We use to send large quantities of forms to agency and we have never had one tear in route.