Seriously? It's a box of envelopes. 100 in the box. No goo. Peel and stick. It really does not get too much simpler to use. That is unless you have someone else stuff your envelopes for you. Which incidentally I have had happen. A former boss would get upset that he couldn't get a hold of me during lunch hour to come in to his office and put his outgoing personal mail in an evelope for him and put it in the mail. Honestly if the guy had Staple's peel & stick envelopes he would not have been so helpless.
Sometimes you need a plain white envelope to mail out bills keep things organized. This envelope meets those needs and more since it has a simple to remove self sealing strip. I hate licking envelopes - they always use the worst tasting glue. This envelope eliminates the need for licking. It feeds well through my laser printer and my ink jet printer too. What would we do without envelopes? I use a box every couple of months for my business - don't need custom printed envelopes because these work great.