Stamping Cards - 80 lb. cover (260 g/m2) - Smooth - These exceptionally smooth, bright white cards are perfect for rubber stamp creations. Also great for calligraphy, stencils, mounting photos, and pen and ink drawings. Matching envelopes for announcement cards are 3.625x5.125 and full size cards are 5.25x7.25. Available in announcement or full size in 10-packs or a 20-pack of full sized cards.