Set of 4 Ocean themed coasters. Pattern on each will be a little different as resin moves at is sets. The colours are beautiful blues and aqua. The coaster is made of mdf wood and finished with a cork backing. Displayed in a white box for gifting. Currently 3 sets available. The resin used is from Australian Beach Furniture in QLD. Their Top Coat resin is food grade and comes with a heat rating of 80 degrees maximum.