Red Blank 5x7 Greeting Cards with Red A7 Envelopes - 50 Cards & Envelopes 50 Red Blank Greeting Cards & 50 Red Matching Envelopes. Cards & Envelopes are Completely Blank and Easy Fold. Cards are 5"x7" in size when fold (10 x 7) when Open, 65lb Cover. Compatible with Inkjet & Laser Printers