Soft body and nipple are the same as material production, ripstop and high transparent of food grade liquid silicone raw materials. Through the American FDA certificate, aging, not broken, can split, extrusion, easy to carry. Scientific elasticity, strength and appropriate thickness, not easy absorption flat, easily take hold. Supporting anti-separtion retainer ring, ensure the body not easily disrupted. The wide diameter body design, convenient brew easy to clean and good take is not easy to drop, but high low temperature - 50 to 200 degrees