This is a single-piece, straight-grained Aomori Hiba cutting board. 330 x 179 x 20mm 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: Super, Super Premium / Super Premium / Premium / Slightly Premium / Straight Grain / Straight-grained boards taken from Hiba logs are a rare and valuable wood. Super Premium boards, taken from trees around 200 years old, are rarely available. Although the price is higher than the flat-grained boards, they are less prone to scratches and can be used for a long time. Both sides are finished with a single pass of a 360mm wide, large-scale woodworking machine, resulting in a very beautiful finish. Customers who have purchased it 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, we discovered a counterfeit of our cutting board! We have added the text "Imitation/Plagiarism Prohibited" to the product images. ⚠️ Providing products that imitate the form of our products violates the Unfair Competition Prevention Act. #Hiba #SinglePieceBoard #CookingUtensils #CuttingBoard #Outdoor