"1st-age baby bottle function: regulating air for easy sucking and reducing colic. Sippy cup: accompanies the child’s transition from baby bottle to using a glass. Removable ergonomic handles: large handles, easy for a child to grip. Sippy cup function with evoluclip anti-leak closing system: for transporting in all security. Lid: when using with the teat and sippy cup function for safety hygiene."