The main ingredient of the grunt bottles is organic silicon, i. E. Polysiloxane, non-toxic, non-polluting of the environment and wide application. Silicon glue is a high-activity adsorption material, a non-cline substance with a chemical formula of msio2 nh2o. Insoluble in water and in any solvent, non-toxic, chemically stable and non-responsive to any substance except strong alkali. The chemical composition and physical structure of silicone determine that it has many other characteristics that are difficult to replace: high adsorption performance, good heat stability, chemical stability, high mechanical strength, etc. Silicon: it's imported medical-grade liquid (solid) silicone, non-toxic and non-odious. Safety: no biphenol a (environmental hormone). (c) heat tolerance: boiled or steam disinfected up to 180° with high stability, acid-resistant alkalis, high hardness and strong grindability. Designed to prevent the baby from inhaling the excess air, causing a discomfort in the ...