I had a Colon Cup made a size smaller. It's the perfect size for a quick break for adults too. Details [Artist/Kiln] Tokunaga Yushin Kiln [Production Area] Ishikawa Prefecture, Kutani Ware [Size] 6.5 x 6.5 x 7.5H (cm) [Material] Porcelain [Handling Instructions] ・Microwave use (Generally) Porcelain → ○ Pottery → ✖ ・Dishwasher use (Generally) Porcelain → ○ Pottery → ✖ *We recommend hand washing. [Remarks] ・Due to being handmade, there are individual differences in shape and pattern. ・If you order multiple items, we will ship them as consistently as possible. ・There may be black spots on the surface due to iron content in the clay or ash in the kiln. Price 2700 yen (tax included) per piece Shipping 700 yen ※Please check the individual product page for the size of each product. ※The color of the actual product may look slightly different on the screen. ※There may be slight variations in size. ※It is possible to use in microwave ovens, dishwashers, and dryers, but it is not recommended as it may cause cracks, chips, or deterioration. ※Cannot be used in the oven.