This utility product is made of food grade silicone. It is completely safe to use. It can be used as gargle cup to treat sore throat, so common during travels, and also as protective shield for tooth brushes. It provides soft and effective coverage to toothbrush keeping them fresh and alive. Hard plastic covers damage the toothbrush bristles. This flexible and soft silicone cover maintains the bristles and their length. Silicone gargling cup is very handy and can be used anywhere and anytime. It can hold enough water to cleanse your throat in the morning to protect it from infections.