Make any cup a baby bottle or non spill sippy or straw cup or...
- Just stretch the silicone skin over and clip in the insert you need.
- Fits mugs, sports shakers, regular cups and more.
Grows with your baby from 0 months to 5 years.
- Fits most other brand wideneck nipples.
Includes: 2 sleeves, sippy cup insert & straw cup insert with weighted ball & straw.