The magnets start with high quality paper which are adhered to white ceramic tiles. They are then sprayed with a polyurethane coating for protection. Ceramic tile magnets are approximately 4" x 2". The magnet on the back of the tile is very strong and capable of holding one or two sheets of paper.
Our magnets are handmade in Colorado. They are perfect small gifts. They are not weather-proof and are meant to be used indoors.