Certified high temperature silicone: Made of food grade silicone with FDA approval, withstands temperatures above 200°C. Guarantees lasting elasticity without deformation during intensive use and maintains the original pressure retention. Precise model matching: compatible with Perfect/Perfect Plus series (diameter 18 cm/22 cm). The faithful dimensioning (origin no. 6093109502) ensures a perfect fit and full functionality of the residual pressure protection. Optimised safety performance: prevents steam leakage thanks to precise pressure distribution. The special lip design allows visual seal control and warns of wear in time - important for safe pressure cooking. Easy to change process: self-assembly in 60 seconds without special tools. Remove old sealing ring, insert new one until it clicks into place. Includes German installation instructions with pictures. Maintenance recommendation: Regular replacement every 24 months recommended. Always keep spare rings in stock to ensure the full performance of your pressure cooker at all times.