Silicone o rings 1.100%Silicone 2.FDA,ROHS Approved 3.Any size and color are available 4.Non-toxic,odourless Jiajie Silicone o rings supplier is a professional Silicone o rings manufacturer in China. We have different sizes of Silicone o rings that are available off the shelf. Our Silicone o rings is an F.D.A. approved material which is odourless, tasteless and non-toxic,firm bonding, beautiful ...