This square coaster is handmade with Betel Nut and preserved by lamination. The coaster is 3" square. It comes in a set of 4. The back is finished with black suede. Betel nut or Bunga is an evergreen tree which grows to 30 meters with a spread of 15 feet.the fresh green betel nut has a highly aromatic olive scent and is used medicinally in the treatment of intestinal worms. The betel nut is commonly chewed slowly over several hours combined with tobacco. Preserved by lamination, this special gift brings you closer to mother nature.