It's an envelope so there's not a lot of features here. It does exactly what it was designed to do. I got them for mailing out a lot of ham radio cards ("QSL cards") and they worked perfectly! They're durable and convenient and I will buy more when I run out. There were no jams running them through the inkjet printer. They work perfectly for SASE envelopes too. The adhesive strip saves you (and your recipient in the case of SASE's) from all that licking.