There are 26 cards, one for each letter of the alphabet. Each card is made of hard cardboard with colorful illustrations on each side. On the front of the card there is a square of hard plastic affixed and slightly raised that contains the “think and blink” holographic portion of the card. As you tilt the card back and forth it shows first the letter, then an object or animal that starts with that letter. The image that shows is dependent upon the angle at which you hold the card.

The Noahs Ark Stacking Blocks are a unique and creative way to teach letters, phonetics and numbers to your child while building his or her knowledge of basic Bible stories. They are sturdy and durable with quality imagery and fit neatly inside one another for easy storage. Aside from a few minor issues, these blocks would make an excellent addition to the toy collection of any toddler or pre-school age child.