The A1 Folded Card (3 1/2" x 4 7/8") is perfect for personal stationery and business correspondence, invitation suite inserts, casual correspondence, including letter-writing and photo-sharing and much more, these attractive folded cards are the perfect year-round card for everyday communication and much more. These notecards fit perfectly into A1 Envelopes (3 5/8" x 5 1/8") and Lee Bar envelopes.