I love these leak proof cups

I heard that sippy cups with spouts are bad for baby's teeth, so I was delighted to find sassy cups which are spoutless but still leak proof. Baby simply drinks from it like a normal adult cup and my daughter has been using it since she was 18 months. Goodbye to spills and crooked teeth! The only con is it is difficult to clean the silicone part. I soak it and scrub it with a toothbrush