Place on top of pie crust before baking, leave on pie throughout cooking time. Allows pie to rise in middle, prevents spillage and protects crust from burning. Fits pies up to 10" / 25.5cm in diameter. Heat resistant to 450degF / 230degC. Silicone won't stain or absorb odors. FDA approved. Dishwasher safe.While we aim to supply accurate product information, it is sourced by manufacturers, suppliers and marketplace sellers, and has not been provided by Overstock.