Hahnemuhle FineArt Baryta FineArt Photo Cards (4 x 6", 30 Cards) 100% Alpha Cellulose; Rounded Corners, Barium Sulphate Baryta Coating, Basis Weight: 325 gsm, Thickness: 16.1 mil, Opacity: 98%, Whiteness: 103%, Moderate OBA Content, Acid-Free; Calcium...