Slate Coaster Personalised Name and Initial Letter Monogram - 100mm x 100mm With Protective Pads Add the name of the recipient and we will add the the first letter as the momogram - 2 designs to choose from: hearts or stars. High quality square slate coaster 100mm x 100mm x 5mm. Sealed on top for protection against stains and markings. Made from antural slate. Base has 4 foam pads to protect your surfaces.