S = Pack of 100 M = Pack of 200.A7 invitation envelopes measure 5.28 x 7.13 inches, designed specifically to accommodate 5 x 7-inch greeting cards, invitations, and photographs this set includes 100 envelopes. Featuring a matte finish, these envelopes exude an elegant and sophisticated appearance. Crafted from 110gsm paper, they possess a substantial weight that ensures durability and resistance to damage. Sealing is effortless: simply moisten the adhesive strip with water and press to secure, or use a decorative sticker for added convenience. Compatible with all types of printers, the smooth, flat surface ensures flawless printing without warping or wrinkling. The V-flap design offers a look that is both simple and elegant, making these envelopes ideal for wedding invitations, party invites, holiday greetings, and other special occasions. Weight: 1.3 lbs.