The Twistshake Anti Colic Coconut Steel Bottle is a bottle designed to reduce colic in babies. It has a 330ml capacity and is made from stainless steel and BPA free material. This bottle is ideal for feeding babies with breast milk or formula, as its slow flow design mimics breastfeeding. In addition, it has a powder mixing system that prevents lumps. It is durable, safe and easy to clean, perfect for meeting your baby's feeding needs.