I have been using these envelopes to organize and store photos that need to be scanned or put into photo albums. I also have been using these envelopes to organize and store old memorablia.
Have had no problems with these envelopes. If I would improve I would make it more sticky as I always cover the outside with tape. they work perfectly for what I use them for.
This was a great value for the price; I am using the product for an ongoing projects wherein we insert handouts and/or mailings...many of which contained different groupings. Thiwas for my service club and the product served us well.
After I prepared a mailing for a charity tournament that I am running I discovered that the post office charges an extra 20 cents postage for each item because with the clasp the envelope can't be run through their machines and thus has to be hand cancelled. I wish I had known that beforehand.