A super popular crafting material this air hardening clay is so easy to use. Younger crafters will really enjoy squishing, rolling and stretching it between their fingers and hands. It is mineral and water-based and there’s no need for a kiln. Once children have finished making their design simply leave the air dry clay out to dry overnight. That’s all you need to do. If the result is not quite what they want then it’s ever so easy to sort. Simply add a little water and rework until they are happy, then repeat the drying out process again. Make, sculpt, dry and paint.