Set Includes 1 - Hegen Pcto 240ml/8oz Feeding Bottle Ppsu with Medium Flow Teat; 1 - Hegen Pcto 150ml/5oz Feeding Bottle Ppsu with Slow Flow Teat; 2 - Hegen Pcto Breast Milk Storage Lids White; 2 - Hegen Seals Features Press-to-Close, Twist-to-Open (Pcto): Hassle-free handling with no spillage; one handed closure (Patent Pending) Precautionary design: If the liquid in the bottle is too hot (above 70 deg Celsius), air pressure will force the fluid out from the Hegen Basic Starter Kit-Kids