Yoshihiro Hinoki Cypress Anti-Bacterial Japanese Natural Wooden Professional Grade Cutting Board with Anti Twisting Walnut Rim (Large) High quality natural material made from Hinoki Cypress Wood specifically designed to minimize stress on your hand and impact on the blade, resulting in better edge retention and a longer lifespan for your knives. Designed to take advantage of the woods high natural oil content and anti-bacterial component in order to maximize performance, ease of use, and longevity. The walnut rim provides an extra resistance to twisting and warping, and its easy to stand design allows for much quicker drying. Small: 11" x 7"x 0.6" (27.9cmx17.7cmx1.5cm) Medium: 13" x 8.6"x 0.6"(33cm x 22cm x 1.5cm) Large: 15.4" x 9.4"x 0.6"(39.2cm x 24cm x 1.5cm) Anti-Bacterial / High Durability / Proudly made in Japan