Stool in birch trunk and burnt

According to the technique of shou sugi ban, this stool made of birch trunk with burnt and varnished top.Different steps allow to have this deep effect of shades of black. To burn it, to brush it, to burn it to brush until the moment you have the desired effect then to water it, then to varnish it several times. It measures approximately 45 / 50cm in height and 25 / 33cm in diameter.