Bought these to send a bundle of legal documents.They are far too flimsy - tear very easily - ended up using parcel tape around all of the edges.Won't buy again!Good envelopes at a reasonable price.Ripped really easy, just trying to add some A4 documents, would not buy again!Arrived in very good time, not as good a standard as I was expecting but do the job I need them to.They arrived promptly and are big enough (gusseted) and strong enough to take the paperwork I have to send out.