Greeting card slot display that your cards set in a 1" deep slot and lean back onto the back wall of each level.The slot measures 21 1/2" Wide 1" deep, 1" from inside to inside, The outside of the display measures 23 1/2" Wide, 21 " Tall, 2 1/4" Thick when closed, and the feet open to 11 1/2" for good support.This display was made for 5"x7" cards 4 per row 12 total with plenty of space behind each main card for more, if you have a smaller card it will still do the job for you.Display is made of unfinished white pine.