Several years ago this item was made very well and had good quality. For the past 2 years that we used this item the same problem of poor construction and adhesive appears. We will probably not use this item again for our business use.
The envelopes have been redesigned with a narrower sealing strip is only 3/4". None of the envelopes in this box seal very well. At a minimum I have to tape down the corners of the top flap even though it has the sealing strip. If the envelope is moderately full I have to tape down the entire top flap as well as the corners of the bottom flap. I shouldn't have to tape any of the flaps in normal usage.