Ultra-light Air Dry Clay is also called super light soil,is one of the paper clays. It's easy to styling and naturally air dry, a poplular handcraft materials. FAQ: Q: How long it takes to dry ? Answer: it depends on the size of the product the weather condition,the advised time is 14 hours . Q: What to do if unused clay get dried ? Answer :Wet your fingers and knead the clay,the clay will turn soft and elastic again.(The color may resolve and stick to your finger at the beginning, but it will be absorbed by the clay after kneading for a while.