These envelopes look good and are easy to use. Not having to lick the envelopes is a great invention. No more bad tasting tongue. You just peel off the paper and seal the envelope. They look good too. The secure envelopes are so you cannot see through them so whatever you send will be hidden. You can't hold them up to the light and see through them. This gives an added measure of security. They also do not rip easy so that means they will not get torn in the sorting and delivery of mail. You can also use them to store small beads without them spilling all over the place. They seal so well that even real small beads can be sealed and not come out. I would recommend this product without hesitation.