Silicone rubber sealing ring 1.Made of 100% silicone, 2.non-toxic, easy to clean, eco-friendly. 3.OEM&ODM service silicone rubber seal ring for box /container1.Made of 100% food grade silicone,2.non-toxic, easy to clean, eco-friendly.3.OEM&ODM service4.customized design is availableAbout us :We specialize in silicone manufacturing and developing, including all kinds of silicone rubber products, ...