This is a sale of a slightly imperfect item. There are imperfections on both sides. The thickness is 11mm, so warping may occur. This is an ultra, ultra-premium item. 313 x 188 x 11mm There is an image with a ruler to show the spacing of the annual rings. To make it easier to understand the quality of the straight-grained board, it is graded into 5 levels: Ultra, Ultra-Premium / Ultra-Premium / Premium / Slightly Premium / Straight Grain. Straight-grained boards from Hiba logs are a rare and valuable wood. Ultra-premium boards from trees around 200 years old are rarely available. Although the price is higher than that of flat-grained boards, they are less prone to scratches and should last longer. Both sides are finished with a single pass of a 360mm wide large woodworking machine, resulting in a very beautiful finish. Customers who have purchased this item have been delighted with the beautiful finish and luster. Also, the edges are chamfered and the 4 corners are rounded, making it gentle on the hands and easy to wash smoothly. It also drains well after washing and dries quickly, making it hygienic. As it is solid wood, warping, bending, twisting, and cracking may occur. Although it is new and unused, there may be some minor scratches. ⚠️ Recently, I discovered a counterfeit of my cutting board! I have added the text "Imitation/Theft Prohibited" to the product images. ⚠️ Providing products that imitate the form of a product violates the Unfair Competition Prevention Act. #Hiba #SingleBoard #CookingUtensils #CuttingBoard #Outdoor