Our trivets are 6"x6" square ceramic tile with cork backing to prevent slipping and scratching. Trivets are sold individually and come packaged in a sealed clear sleeve with an artist's bio. Images are permanently sublimated onto the tile, leaving a glossy finish. Trivets can handle both hot and cold temperatures. While they are food safe, please do not submerge them in water, put them in the microwave, or in the dishwasher.