Inspect the silicone spout for damage before each use, and test the spout for strength by pulling on it. Do not use if torn, or pulls out of the holder easily. Allowing your child to spend prolonged periods of time drinking liquids, other than water, from this cup may cause early childhood tooth decay. Always supervise children when eating/drinking. To avoid injury, do not allow a child to walk or run with a cup. Do not microwave. Not intended for use with pulpy juice, carbonated beverages, or hot liquids.