This expertly crafted wine coaster is made from a BPA-free, reusable, shatter resistant, polycarbonate plastic glass that shows no visible seams. Additionally, it helps protect the surface of your table from wine drops or rings made by a cold bottle of white. Possessing both the look of glass and the durability of plastic, the pieces can be used for indoor dining and dining al fresco. Clean up is simple, as this tabletop accessory can be easily wiped clean.