I found another brand that will feed through the printer better and not jam so much. I "fan" them before inserting in printer but they still jam more than I like. I can't find WHAT the problem is.
I've been using these for several years now. The amount of glue on the seal has been declining until now there seems barely enough to seal the envelope
Because the seams of the envelopes have little overlap and barely adequate gluing and because they are cut so that letter size paper catches one side or the other care must be taken not to pop the seams when stuffing the envelopes.
Easier and faster to use than the Pull Strip version. I make a mailing of 2000 per month and I've tried all different types of envelopes-these are the best.