Spectra Wide Neck PP Bottles are made from 100% polypropylene (PP). This product is suitable for wide neck shield sets only. Benefits and Features:Made from 100% polypropylene (PP)Suitable for wide neck shield sets onlyBPA freeCompatible with your Spectra breast pumpsConvenient, practical expressing without wastage - express into bottle, store and use to feed. Easy to clean and sterilizeSuitable for fridge or freezer Product Details:Safe !#!amp!*! Non toxic (BPA free and Phthalates Free)Size : 160mlUS FDA approved material for safe storageMade of 100% food grade polypropylene (PP) for safe !#!amp!*! longer storageCompatible with Spectra Premium Breast Shield (wide neck)