Overview Reviews Product Description Affirmations to inspire and encourage. Thirsty Coasters are made from natural Dolomite; a sedimentary stone that gradually absorbs liquid. The cork back protects your furniture and ensure no marks are left behind. Product Videos Custom Field Product Reviews Write a Review Write a Review × Beachcomber BACS4015 Thirsty Coaster Shine bright Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *