【51mm Silicone Steam Ring For Espresso Machines】 Silicone Steam Ring compatible for Delonghi EC680/685/785/885/850/860 Coffee Maker etc. 【Food Grade Silicone Material】 The Silicone Steam Ring of the coffee machine is made of high-quality silicone material, which is safe and durable, non-toxic, flexible and safe to use, more resistant to high temperature than ordinary rubber gaskets, and has a longer life. 【Excellent Sealing Ability】 No BPA grouphead gasket replacement part soft silicone fits into grooves very easily, resulting in a tight and secure fit that seals to ensure no moisture escapes while minimizing necessary changes frequency. 【Size】 The inner diameter of the brewing head gasket of the coffee machine is about 4.7cm/1.85inches and the outer diameter is 5.7cm/2.24inches inches. The silicone coffee machine brewing head gasket is exquisite in workmanship, perfectly fits, and well-detailed. 【Suggestion】 It is recommended that three months to replace the silicone ring, long-term use will be aging, resulting in a decline in airtightness, extraction of coffee liquid will flow from the side, the use of a long time will be yellowed with dirt, need to update to ensure usability. Specification: Material: Food-grade Silicone Sizes (Optional): 51mm Applicable Model: 51mm for Delonghi EC680/685/785/885/850/860, 54mm for Breville 8 Series 480/870/878/880 etc. Package: 2x Seal Ring