Norpro 1401 9" Round Cast Iron Grill Press Measures, 8.75"/22cm diameter The wooden handle stays cool when in use. Hand wash, rinse and dry - never soak cast iron. Season before use by lightly coating the press with vegetable oil, placing face down in a frying pan, and heating over a very low heat for 20 minutes. Wipe off extra oil with a paper towel. Not for use in nonstick pans.