Use Jam Paper a7 invitation booklet envelopes if you're looking for a high quality, versatile envelope option. These booklet envelopes are exceptional for sending greetings, thank you cards, wedding invitations, save the dates, announcements, photographs, homemade cards, notes, and much more! Each envelope features a clean white exterior and unusual square shape that catches recipients' attention immediately. Appropriate to use in the office, home, and everywhere in between. However you use, expect high quality performance and efficacy. This pack contains 50 white booklet envelopes made from 24 lb. Paper measuring 5 1/4" x 7 1/4". Each envelope has a booklet opening, straight flap, gum closure, and smooth finish. Size: 5.25In x 7.25In | color: white | quantity: 50/pack