You will be happy to leave these pretty coasters out on your coffee table, even when not in use. Christine and Reid use a traditional stained glass technique to make these.....but in a non-traditional way. Fabric is sandwiched between two pieces of glass to create each coaster, with clear rubber pads to protect your table surface. Set of four, chose between a pretty red floral pattern or hand-dyed indigo print. 4 1/2" x 4 1/2"