Thank you for viewing. High-grade burl, Japanese quince grape burl, burl wood, handcraft material. The dimensions are the maximum values. Please make your judgment based on the images. Length: Approximately 28.5cm Width: Approximately 16.5cm Thickness: Approximately 28mm Due to the natural wood, there may be warping, cupping, checking, pinholes, grain skips, chips, and bark inclusions. Thank you for your understanding.