Clay Air Drying Terracotta 4. 5Kg delivers dependable performance with a durable, classroom-ready design. Give your students a hands-on clay experience without the need for kilns with our air-drying clay! . It's a natural UK-mined product, available with or without nylon fibres for added strength. Children can mould, shape, and stretch it while developing hand strength. It's a fun way to explore basic concepts like hard/soft and wet/dry. Use it with modelling tools and textured plates, and when their creations are dry, paint them with any paint and seal them with strong PVA or varnish for a glossy finish. Plus, it's wheat and gluten-free, making it a safe choice for all. No kiln required!