Colourful coasters set to brighten and cheer your family and guests. Tied With Ribbon For Gifting. Set comprises of 4 square coasters made with solid eucalyptus board; with dark green baize backing from Italy to protect your table from scratches. The surface is coated with heat resistant melamine so easy to wipe clean.I wanted to add a rainbow design into the collection and came up with the idea of putting the seven colours into a square.