Description Announcement envelopes (square flaps) in bright colors. Acid-free, matching 65# cardstock available in 8½” x 11″ and 11″ x 17″ and matching prefolded announcement cards available in A-2, A-6 & A-7 sizes. Available envelope sizes: #5½ / A-2 (4 3/8″ x 5 3/4″) #6 / A-6 (4 3/4″ x 6 1/2″) #7 / A-7 (5 1/4″ x 7 1/4″)
