These are self sealing envelopes but there is no strip to allow the user to expose the sticky part of the closure. Rather the two sides are both adhesive and they will stick together if you press them although I am not sure how well the closure holds; I haven't used them long enough. But I frequently send this type of envelope to clients to sign and return papers. I am concerned that they will have trouble with these envelopes.
Partly my fault—I thought these were going to be the pull off the paper strip kind but they’re simply two layers of glue making it hard to insert things without messing up the seal and getting your hands gluey.
I mail all my tax preparation papers to my tax man. These envelopes make it easy for putting them into categories mostly in order of the information needed on final forms. By keeping track of previous year's documents I know what is late getting to me and can contact the company/person who is late. Then when everything is in order off the paperwork goes.
Love these to send bulky overweight statements to our customers. An easy half fold stuff 'em in press to seal and off they go for the same rate as a regular #10 envelope with out trying to overstuff the #10 and getting in trouble with the post office!