These pencils fire to 1080℃. Pencils are the best way to apply colour as a hand-drawn design to your work. You can also use the pencils for or for marking your ware. The pencils can be used to create fine lines, or smudged and blended. It is best to dip or pour glaze over the pencil line or you can dab the first layer of glaze if using a brush on glaze as the pencil line can blur if glaze is dragged over it. Use a blade to sharpen the pencil.