Durable and reflexible silicone base to easily pop the cake out. Non-stick, stain-resistant surface for easy cake release. Rigid carbon steel handles and frames protect the silicone base from bending and folding. Dishwasher safe, freezer safe and oven safe to 230°C / 445°F / Gas Mark 8. Inner dimension: 22.5cm(Dia.) x 11(H)cm. This product comes with a 2 year guarantee.