Le Creuset FB512-MC Silicone French Coasters (Set of 4), Multicolor Set of 4 silicone French coasters protects tabletop surfaces Made from stain-resistant, non-abrasive silicone Resists odor and flavor absorption; great for everything from staging to serving Freezer-, microwave-, and oven-safe up to 482 degrees F; dishwasher-safe Measures 4 by 4 by 1 inches