Lux Sparkle A7 Invitation Envelopes (5 1/4 x 7 1/4) 90#These premium A7 Sparkle Envelopes are constructed from Mirri Sparkle Paper and give a high-end shimmer and luster to your invitations and announcements. The glitter texture is smooth, elegant and will not shed or transfer to hands or clothing. Sealing is made easy with our Peel & Press strip on the inside of the envelope flap.