The convenient Lifefactory Sippy Cup Tops allow to turn baby bottles into sippy cups for your toddler. Offering a steady flow and leak-resistance, each lid features a silicone valve and unique design to fit 4 and 9 oz. glass baby bottles.
Set of 2 sippy cup tops
Suitable for ages 0-4 years old
Sippy tops fit on the 4 oz. and 9 oz. glass baby bottles (sold separately)