Cork-backed, and featuring a luxury finish with a with a soft painting of harboured boats and old coastal buildings. Coasters are wipe clean, slip resistant and heat resistant to 120C (248F). Those who pine for the sea will love this set of coasters. Or start your own collection matching mugs, placemats and more are available. Measurements: 10.5 x 10.5 cm (4" x 4"). Creative Tops Cornish Harbour Pack Of 6 Premium Coasters