“Such a great concept -- a sippy cup lid without dangerous chemicals! You can even push in the little tab on top to seal it closed when it's not in use. It's a clever design, too. The lid fits both the small and large cups by overlapping the outside of the small cup, and by fitting snugly inside the 16 oz. pint glass.
I use this for my coffee. My kids use this as a sippy cup lid.”
