This is a piece of end grain from a spalted chestnut with birdseye figure. Please check the condition in the photos. It's shimmering, which is hard to tell from the photos. 146mm x 61mm x 13mm There will be slight variations. Measured at the largest dimensions. #MeibokuyaList Please take a look at my other products as well. We have a large number of rare wood products for sale.