Hand made from our own original watercolour paintings using Natural Botticino Marble. Our coasters have a tumbled finish to give a rustic appearance. They measure 10cm square and are 1cm high. Our coasters have protective silicone feed to prevent damage to tables or other work surfaces. Coated with a heat resistant and food-safe finish As the marble is natural product, there may be some unique differences in both colour and texture. We will always try to match coasters when ordering a set.