The SONNY-LE Embrace Breast Pump System combines ultimate comfort with state-of-the-art efficiency, including a double electric pump, manual breast pump, and all the accessories you need for long-term, daily pumping Pump, store and feed your baby from one SONNY-LE Drop-Ins pre-formed soft bottle liner. No transferring bottles, No wasted breas milk, No bottles to wash, and No extra bottles needed for storage. Each kit includes all the parts necessary to seal and store 4 SONNY-LE Drop-Ins Liners at one time.