A. Features: 1. A replacement sealing gasket for pressure cookers that helps to ensure cooking safety. 2. Made of silicone material, which is non - toxic and odorless. 3. Heat - resistant. 4. The elastic silicone makes it relatively easy to fix on the pressure cooker lid. 5. It has relatively high elasticity to help ensure efficient sealing. 6. Efficient sealing enables food to be cooked more easily. B. Scope of application: It is mainly suitable for aluminum alloy pressure cookers and may not be suitable for stainless - steel pressure cookers and electric pressure cookers. C. Specifications: 1. Material: Silicone 2. Sizes: The diameter options are 18 cm, 20 cm, 22 cm, 24 cm, 26 cm, 28 cm, 30 cm, and 32 cm. (Note: The diameter here is not the size of the sealing ring, but the inner diameter of the pressure cooker. For example, if the inner diameter of your pressure cooker is 18 cm, then you may choose an 18 - cm sealing ring.) D. Items included: 1 silicone sealing ring