This is a set of 4 handmade sashiko embroidered coasters. They are embroidered with different patterns using black sashiko thread on a muted gray fabric. The embroidery has been washed and interfacing has been applied. The back is a combination of the same gray fabric and black fabric. Each side is approximately 9-9.5cm. I make them with care, but there may be some slight imperfections such as puckering or distortion. I appreciate your understanding.