Calma Is An Innovative Feeding Solution Created For Breastfed Babies. It Is Designed To Not Interfere With Breastfeeding, To Let Your Baby Feed The Way They Learned At The Breast. , , The Calma Method Allows Baby To Drink, Pause And Breathe In A Natural Rhythm, Remaining Calm And Settled. It Allows Baby To Create A Vacuum To Start The Milk Flow, Just Like He/She Does While Breastfeeding. Also, It Lets The Baby Continue Its Natural Way Of Sucking, Allowing An Easy Transition From Breast To Calma And Back To Breast Again. , , Calma Helps The Baby To Avoid Ingesting Air During The Feed With A Specially Designed Venting System. While The Principle Of Venting Is Similar To Other Teats, Calma Is Regulated By A Venting System That Works Every Time, Regardless Of How Tightly It Is Secured To The Baby Feeding Bottle. Babies Will Be More Likely To Feed Calmly, In Their Own Natural Rhythm. , , Each Baby Can Synchronise Individually With Calma. When Breastfeeding, Each Babys Natural Rhythm For Sucking Is Unique But They All Need To Create A Vacuum To Remove Milk From The Breast Calma Also Allows The Baby To Keep Its Own, Natural Rhythm Of Suckling And To Create A Vacuum For The Milk To Flow. 1) All-Stage Nipple, (1) 5 Oz/150 Ml Bottle, (1) Cap, (2) Lids.