18mm ceramic buttons graphit pavel sirius These are about 20mm and

These are about 20mm and sold in sets of 6

These are 17-18mm buttons sold in different sets

Ceramic buttons blue crystal

These are 18mm buttons

18mm ceramic buttons graphit pavel sirius These are about 20mm andHandmade ceramic buttons graphit. These are about 18mm and sold in different sets. The buttons were fired two times. First firing is the so called bisque firing where temperature goes as high as 1000C degrees. After that our buttons are ready to be glazed. We put 2 layers of glaze manually and when they've dried, buttons are fired for the second time at about 1210C degrees. The backside of the buttons stays unglazed. Its like a stone to the touch. Can