Photographer's Edge, Photo Insert Card Sample Pack, 18 Colored Cards, for 4x6 Photos Patented Photo Insert Card for landscape(Horizontal) & portrait(Vertical) photos 1 card each of our 18 different Cardstock colors 18 Bright White envelopes included Blank inside, most window openings are 3-5/8" x 5-5/8", finished card size is 5" x 7" Made in the U.S.A. with recycled paper and printed with soybean based inks