One 8 count package of 4.25 inch by 6.25 inch Sesame Street Birthday Invitations with envelopes. Everyone will be thrilled to see these Sesame Street Birthday Invitations in the mail. Simply fill in your party information on the inside and use the provided envelopes. Place the save the date stickers inside each envelope and your guests can place them on their calendars at home. You can also seal the envelopes with the Sesame Street Stickers provided. They coordinate perfectly with the Sesame Street Birthday Party Supplies. Be sure to check out our Sesame Street Postcard Thank You Notes.