Ceramic Coasters, with Cork back to prevent surface scratches. UV Printing (not vinyl), which makes it permanent! 4" Rounds.  Great to use for drinks and even better to use as countertop décor in the home. To ensure you have a 1 of a kind piece everyone is asking where you got it from! Buy individually to display as art, buy several to make a pack or mix and match with our other coasters to create a unique set! We do NOT put a coating or gloss over these, so they have a matte finish. This allows the ceramic to soak up water/condensation & prevents water pooling on/over the coasters.