Natural Sandstone coasters are a popular choice for their natural and earthy beauty. Sandstone coasters are made from natural sandstone, which is a sedimentary rock composed of sand-sized minerals or rock grains. Sandstone is a sustainable and environmentally friendly material. Each coaster is printed with an artistic design that compliments the sandstone. These Sandstone Coasters will continually absorb condensation from beverages. Sandstone is also heat tolerant, making it a great choice for protecting tables and countertops from hot beverages. Each coaster measures 4” diameter. This is a single coaster with no packaging.