Circular storage basket made from natural materials. - Material: Natural material (likely grass or straw) - Shape: Circular - Use: Storage basket - Size: Outer dimensions: Diameter 40cm, Height 24cm; Inner dimensions: Diameter 35cm, Height 20cm Found at my grandparents' house, in the storage room. I think it was used in the past to keep cooked rice warm, like an ohitsu (wooden rice container). The outside is darkened from dust, but the inside is clean and hasn't changed color. See reference image 10. I think you can keep dishes like food in a pot warm inside. Also, it can be used as a storage basket... It has a lid, which is convenient.