4 coasters, one of each design, of the iconic New York City water towers. 4" (10cm) square. Images are based on my original watercolors. Made in NYC of hardboard with a waterproof and heat resistant laminated top coating. Water Towers for your wine, water, whiskey or whatever! These are understated New York for those in the know. They add an elegance to your table while protecting it and make a wonderful gift for anyone who loves NYC water towers.