This coaster has been printed with the photographed design I created with 31 rocks from my collection of naturally-formed heart-shaped rocks from the Maine coast. The original flat-lay art was about 2 feet long when I photographed it outdoors from a ladder. • Art is heat-absorbed into sandstone by CoasterStone (USA) for moisture & heat absorption • Larger than standard coasters at 4 1/4" square, they have a 1/4" depth and a cork backing with a label which reads: Original flat-lay photograph designed with heart rocks shaped by the surf along the coast of Maine • Each is individually packaged in a cellophane sleeve with SKU sticker With a search of 'Pet Love' in my shop, you'll also find this art available as candles, playing cards, note cards, magnets, and prints.