Royal to build kilns sharply glaze tea light.Specification: 7 cm high 12.5 cm in diameter.Sharply glaze, or pure black glaze, is under construction in the kiln, the black set on the basis of development, but also and all kinds of red glaze on the colour and lustre ispletely different, which sharply glaze colour and lustre is bright like a black paint, this also is the main feature of sharply glaze.