The COA-4 is a 3.375″ coaster. 

Your full-color artwork is printed on our thinner seed paper with Earth-friendly inks that won’t damage the seeds. The seed paper is made by hand from 100%-recycled material and embedded with a hardy mixture of wildflower seeds. Just plant, water and enjoy your beautiful garden! Coasters are available in round or rounded square. Turn your coaster into a gift by adding an insert and crystal clear sleeve.