A thin stacking ring made with black unglazed porcelain. Part of my collection of porcelain rings that was launched on Kickstarter earlier this year. Available in a round- and flat- profile. Matte finish. For a comparison of the flat and round profile please consult the third picture. ~materials: black stained porcelain. ~approx size: round profile: about 3mm wide; flat profile - about 4mm wide. The available sizes can be seen in the drop-down menu. Please note that the sizing for porcelain rings is not that exact, as they are not perfect circles. When in doubt, choose a size up. designed and handmade in Europe.