ALIQUANTUM INTERNATIONAL-Rock Clayzee. It molds like clay but dries like Rock! This fun modeling material is soft; shapeable; paintable; non-cracking; and dries in the air! This package contains one 400g block of Rock Clayzee. Conforms to ASTM D4236; F963; EN71 part 3. Recommended for ages 3 and up. WARNING: CHOKING HAZARD-Small Parts. Not for children under 3 years. Imported.