There is not much about an envelope to write a long review. I have used it before. it is a well made product. The paper is of good quality. One can write an address on it using an old-fashioned pen (real ink not gel) and have it absorbed well by the paper w.o. smears of any kind. The sealing of the envelope is also effortless; all it requires is removal of the tape covering the adhesive on the envelope.