The Delta Gas Stove Part O Ring Are Madeup Of Enamel Coated Mild Steel, It Also Known As Burner O Ring, It Has 4 Sizes In The Market Such As 70 Mm For Small Burner, 80 Mm For Big Burner, 85 Mm For Medium Burner And 92 Mm For Jumbo Burner. In This Product Variation We Are Include Pack Of 4 Pcs. Which Are Suitable For 70 Mm For 2 Small Burner, 80 Mm For 2 Big Burner For 4 Burner Gas Stove. Burner O Ring Makes Your Stove Looks Good. It Helps To Keep Drip Tray Clean And It Prevent Transfer Excess Heat Of Flame To Glass Top Surface Of Gas Stove. Suitable For All Type Of Branded Gas Stove. We Are Supplier Of All Major Brands Of Gas Stove, Our All Product Are 100 % Checked And Tested As Per Standard By Skilled Personal. So That Our Product Are Competible With All Branded Gas Stoves.