If your baby is ready for thicker liquids, the Variable Flow Nipple
is ideal. This nipple has one laser-cut slot instead of holes, so you
can vary between 3 flow rates while your baby is drinking. Simply turn
the bottle to align the I, II or III markings on the side of the nipple
with your baby's nose, so that the thicker liquid flows through at the
right speed. More markings create a wider opening. Note: Do not use
Variable Flow as an alternative to the Slow, Medium and Fast Flow
Nipples, as marking I is faster than the Fast Flow Nipple.
