Save time and precious liquid gold by direct pumping from your breast pump directly into Cherub Baby Breast Milk Bags by attaching these handy breast milk bag adaptors. Simply screw the top of the adaptor into your breast pump and the bottom screws into your Cherub Baby Milk Bag. Pump directly to bag and store., Adaptors are BPA and Phthalate free and screw in easily to all major brand pumps: Fits Breast Pumps from Medela, Tommee Tippee, Philips Avent, Pigeon, Ameda, Unimom, Spectra and more.