Pump directly into breastmilk storage bag, no need to transfer from bottles to bag.
Works well with wideneck breastpumps:
Avent Manual Breast Pump
Avent Single or Double Electric Breast Pump
Made with High Quality Food Grade Polypropylene (PP) material - BPA & Phthalate free.
Assembled with Stainless Steel spring, DO NOT Clean or sterilize this adapter in microwave oven or steambag. To safely sanitize the adapter, use boling water for 2-3 minutes.