Features & Benefits
- Exclusively for Sonata Breast Pump: Designed with you and your baby in mind
- Medela Authentic Spare Parts ensure quality and performance you can trust: Great as a spare or replacement set
- Made without BPA: Safe for you and your baby
- Two silicone membranes
- Made of silicone
- Unit size/package: 4 1/4" x 2 1/4" x 2 1/4"