This trivet has a sculptural quality more befitting a work of art than a humble rest for hot items. Its contrast of brushed and polished finishes and its ingenious expanding design elevate it from the mundane to the beautiful.18/8 Stainless steel Expands from 8 3/4" to 10 3/4" Square Non-slip Santoprene feet permit air flow and provide thermal protection Lifetime Warranty