Monster Mania Postcard Invitations (8) Party Accessory One pack of 8 &ldquo;You're Invited&rdquo; invitations Included green envelopes Invitations are approximately 4 1/4 &Prime; x 6&Prime; Spaces on the reverse side to write in party specifics such as &ldquo;For, Date, Time, Place, Given By, R.S.V.P&rdquo;