The Lansinoh Breastmilk Storage Bottles Have Been Designed Specifically For The Safe Storage Of Your Precious Breast Milk. The Way In Which Breast Milk Is Stored After A Mother Has Expressed Is Vital. That Is Because It Contains Important Vitamins That Play A Huge Part In The Development Of Your Baby. Lansinoh'S Breastmilk Storage Bottles Have Been Designed Specifically For The Safe Storage Of Your Precious Breast Milk. Their Wide Neck Design Mean They Are Compatible With All Of The Breast Pumps Within The Lansinoh Range As Well As The Exclusive Natural Wave Teats. Bpa And Bps Free. Works With All Lansinoh Breast Pumps. Fits Most Other Standard Size Breast Pumps. Freezer And Dishwasher Safe. Silicone Sealing Disk Prevents Storage Bottle From Leaking. Ergonomic And Easy Fill Wide Neck Design. 4 X Lansinoh Breast Milk Storage Bottles, 4 X Bottle Collars, 4 X Silicone Sealing Discs. Age Recommendation: 0 M+ Dimensions: 6 X 6 X 9.8Cm.