Our flat card in cover weight fits in our #10 open end envelopes, this slender design is perfect for a quick note or a unique invitation. In our poppy, an orange with a light hearted feel and a thoroughly modern spirit. The Brits would call it "cheeky". We're glad it finally arrived. Help yourself. Size - 3 7/8" X 9 1/4" Sold in packs of 25