The 500g Number One polymer clays are available in black and white, making them perfect for all types of creations. They provide a fully opaque finish after baking, with no color changes. These larger packs are ideal for bigger projects and can also be mixed with other effect clays for unique results. The Number One range is highly recommended for creating beautiful gradients. After baking at 130°C for 30 minutes, the surface can be left matte or polished to achieve a highly glossy finish—no additional varnish required.