These are leaf-shaped Nambu Tekki (cast iron) tea trays (coasters). 12 cm wide, 2 cm high. ≪Product Description≫ ● The items are all as shown in the image. ● They feature the characteristic weightiness of cast iron and a realistic leaf vein design. When serving tea, they protect the table from hot teacups and prevent burns. They are made from Nambu Tekki, a traditional craft of Iwate Prefecture. #NambuTekki #TeaTray