This is a deep bowl. It was made from walnut wood. It's great for a single serving of donburi, or as a salad bowl on the family table. It has a comfortable curved surface and a deep color. It will brighten up your dining table. Finished with a food sanitation law-compliant, natural oil. We will provide care instructions after purchase. ◆Size Diameter: 170mm Thickness: 65mm Neutral detergent: ○ Dishwasher/Dryer: × Microwave/Oven: × We will ship within 3-5 days after purchase.