This is a set of four handmade sashiko embroidered coasters. The embroidery is done with off-white sashiko thread on gray linen fabric, which has been pre-washed and interfaced. The back features a striped pattern using the gray linen from the front and beige linen fabric. Size is approximately 9-9.5cm. I make every effort to create these with care, but there may be slight imperfections such as puckering or distortion. Thank you for your understanding.