Photographer's Edge, Photo Insert Card, Periwinkle Blue with Black Border, Set of 10 for 4x6 Photos Patented Photo Insert Card for landscape(Horizontal) & portrait(Vertical) photos 10 Bright White envelopes included Blank inside, window opening is 3-5/8 Periwinkle Blue Cardstock Made in the U.S.A. with recycled paper and printed with soybean based inks