The Envelope itself is fine, good quality and the right size to fit our folders. The problem is with the pull-off strip over the glue. When trying to pull the strip off it does not come off - it is too flimsy and easily sticks to the glue. this means that it is difficult and very time consuming to remove the strip in order to seal the envelope.
A great pity, since the company is a joy to deal with, prices are very reasonable and apart from this flaw the product is good.