These hilarious prank envelopes are a lot fun. Just address it to your favorite co-worker, and drop it in the mail. Imagine the talk around the office water cooler when these show up? Or send one to your friend's home, his wife will love to get the mail, the day one of these arrives. These are bright neon colors and huge, measuring 6 inches by 9 inches, guaranteed to get a lot of attention! This funny prank envelope is sure to embarrass because it is from the Back Hair Removal System!