I just found this in Toys R Us. There are five "sets" numbered #1 thru #5 each containing one magnet and four cards. So, that's a total of 5 magnets and 20 cards. The magnets are blank backed and the numbered cards have some information on the backs. The colors and 3-D images are excellent. The cards are 3 1/4 inches by 2 1/4 inches. They are made in Germany and cost $5.99 plus tax. For those of you who like 3-D and motion cards this is a really nice set.