This product is functional but has been rejected during inspection. It is made of natural wood with a high heat retention and a soft feel, finished with lacquer. Material: Natural wood, Lacquer coating Dimensions: 12.8 x 12.8 x 7.9 cm Capacity: 500ml (full) #UrushiNoSato ⚠️This is a sample image, so the actual product may differ slightly in color, grain, and shape.