Cernit N°1 56g With over 40 different colours, the Number One polymer clays are suitable for all creations and are therefore the popular. They all offer a completely opaque finish after backing, with no colour changes. They can also be mixed with other effect clays. The Number One range is recommended for creating beautiful gradients. After baking you can keep it matte or polish it to achieve an extremely shiny result. No need for additional varnish. Easy to soften, non-toxic, mixable colours, non-drying, non-discolouring, odourless during cooking, remains flexible after cooking, water resistant after baking.