Send out non-standard wedding invitations, graduation party invitations, business correspondence, announcements, thank you notes, checks, marketing materials, brochures, cash, gift cards and more! Envelopes have an open end opening, straight back flap and moisture-activated gummed closure to keep inside contents safely sealed. Details:Black linen4.5" x 10.375" (#11)32 lb.25 envelopes Feature a linen textureFrom 30% post consumer recycled premium paper