This air-dry modeling compound feels feather light! Kids love working it between their fingers as they blend the colors, roll out shapes and use the sculpting tool to add details. It's so simple to use: Grab a pinch or two and blend, twist and build to make amazing sculptures. Then just leave your creations out to dry! Unused "clay" stores securely in eight airtight plastic tubs, so this colorful set can be used again and again.