The lids are shaped to strengthen your baby's sucking technique.
The hole for liquid is conveniently lowered into the mouthpiece so that it will not tare like other sippy lids tend to do.
The sippy lids ensure no spills at the table or perhaps on the go, in the car, stroller or at a picnic.
The small mouth on the lid will only provide liquids when the child is squeezing the sippy lid with its mouth.
A small vent in the lid will avoid vacuum and make it easy peasy for the child to drink on its own.