Self-hardening clay, as its name suggests, doesn’t require any firing or baking in an oven. It hardens on its own within 24 - 72 hours, depending on the thickness of the product. We offer several types of clays from which you’ll certainly choose some. Self-hardening clay is non-toxic and even the littlest ones can work with it without any protective equipment. The standard clay is offered in white and terracotta colours. If you want to craft with children, you’ll appreciate the wide palette of colours of DAS Junior clay that resembles plasticine but products made from it will harden on air.