The Dritz Silicone Iron Rest is made of heat-resistant silicone material, which acts as a barrier between the hot iron and ironing surface. It also features raised dots, which aid in quick cooling of the iron. Suitable for all your ironing requirements, this rest can easily be placed on ironing tables, boards or counters. Protects work surfaces from hot iron and steam. Safe for use on ironing board, table or work surface. Raised dots help unplugged iron cool faster. To use, lay iron on rest against a flat surface, with dots facing up.