Hey mamas, the Breastmilk Storage Bottle Wide Neck set is perfect for pairing with wide neck pumps like Spectra, Avent, and Horigen! These 5pc. BPA-free, food-grade PP bottles feature a wide-mouth design for easy cleaning and ergonomic holding. The writable surface allows you to label with a regular pen or dry erase marker, making it simple to track dates—just erase with soapy water. Safe for both you and your baby, these bottles comply with FDA and EU regulations and are a great choice for storing your precious milk!