What is air dry clay?
Many people referring air dry clay as a new form of clay. Even some of them make the clay sounds trendy by calling it ADC Clay

Basically, the clay will dry out in room temperature within 24 hours or few days depends on weather in your home country, size and thickness of the model. 

I did all my clay models - all sizes with my own ADC clay. I love the material so much. If you want to make your own clay you can check out my modeling clay recipes. But if you are not sure about it I would like to suggest you to buy ready-made air dry clay. (www.menzzitoy.com)

Next:How many kinds of clay?