Caroline's Treasures MM6015FC Frog Foam Coasters (Set of 4), 3.5" H x 3.5" W, Multicolor Set of 4 Foam Coasters - 3 1/2 inches by 3 1/2 inches Permanently dyed and fade resistant Washable in the top of your dishwasher Made from our mouse pad material and is heat resistant up to 400 degrees Printed in the USA