Description:1. Heat dissipation plate distributes heat evenly, and it wont overcook or burn areas 2. Suitable for copper stoves, electric stoves, electromagnetic cookers and more 3. Kitchen utensils better protection Features: Material: Stainless steel disc diameter: 20: about 19.4cm/7.64", 22: about 21.4cm/8.43" Thickness: about 3mm Note: 1. Utensils and Pots Please allow 0-2.54cm differs due to manual measurement, thanks for your understanding 3. Pills will not discolor the surface after use, this is a normal phenomenon, the product does not affect its function and quality problems 4. Hand washing is recommended Package Contents: 1 * Heat Diffusion Plate