Ideal for everyday business, these invitation envelopes provide versatility and ease for all your mailing needs. When you have larger mail that needs to be sent, these spacious envelopes do the job. Calendars, announcements, dinner invitations, and more lay flat and fold-free, keeping your mail professional.Details:White10" x 10"Made from 28lb. paperAvailable in multiple countsSmooth finishSquare openingStraight flapGum closure