MY ABILITY TO REMEMBER SONG LYRICS FROM THE 80'S FAR EXCEEDS MY ABILITY TO REMEMBER WHY I WALKED INTO THE KITCHEN. DIMENSIONS: 3.8125 W X 0.05 D X 3.8125 H IN. / 9.7 W X 0.1 D X 9.7 H MM MATERIAL: MELAMINE EACH COASTER IS BACKED WITH PROTECTIVE CORK. HEAVY DUTY, DURABLE MELAMINE WITH A SMOOTH AND SHINY SURFACE THAT IS EASY TO CLEAN.