Philips avent classic triple bottle pack starter set includes everything you need to bottle feed your new born the pack includes three philips avent classic plus bottles with slow flow teats suitable for use from 1 month and above the bottles come fitted with the philips avent anti colic teats that vent the air through the neck to prevent vacuum build inside the bottle allowing for a gentle flow and reducing infant colic the classic bottles are safe for use with sterilisers and are top rack