【Silicone Steam Ring】Clean cut and just the right breville 54mm steam ring is made of high-quality silicone material, which is easy to remove and easier to install, it is more durable, more resistant to high temperature than ordinary rubber gaskets, and has a longer lifespan 【Food Grade Material】 The silicone gaskets are made of food-grade silica gel, non-toxic and harmless material, it can prevent the growth of harmful elements more effectively, you don't have to worry about chemicals leaching into the coffee. 【Kitchen Essentials】 Silicone gasket are a must for life and kitchen, and any set of gaskets needs to be replaced, so having a spare steam ring on hand is essential. It adapts to a temperature range of -65°F / 54°Cup to 450°F / 230°C and you can use it for a long time. 【Perfect Fit】 Once installed, our silicone ring creates a tight, secure, and perfect fit to make sure that no pressurized water escapes. The silicone gasket fits perfectly into the groove for a close-fitting seal. 【54mm Silicone Steam Ring For A Variety Of Espresso Machines】 Combination gasket compatible Breville espresso machines 870/878/880/860/840/810/450/500/Sage 500/810/870/875/878/880