LuvLap 3-in-1 Steel Feeding bottles cum Sippers are ideal for 's consumption of mother's milk formula feed Juice and other liquids. The body of the sipper is made of rust-free SS304 steel. It is odor free o. The liquid is the sipper and can be consumed through the nipple spout or Straw. All these come with the anti-colic venting system. The ergonomic handle makes it easy to hold