Nuk First Choice + Silicone Anti-Colic Teat T1M 0-6M adapts perfectly to the baby's mouth, allowing a correct feeding and simultaneously contributing to the correct development of the jaw, lips, muscles and tongue. It is very smooth and gives a natural feeling during use. It contains a large surface anti-colic valve, with a cross slit and a special system (Anti-Colic Air System), which ensures that the content inserted in the bottle flows naturally, so that the baby can drink easily and relaxed, without ingesting air. The silicone that makes up the teat is a very soft elastic material, resistant to high temperatures and with a neutral flavor. It is chemical-free, transparent, can be boiled and has a smooth surface. Teat size: 1 - suitable for children up to 6 months. Orifice size: M - medium orifice, suitable for breast milk or powdered milk, as well as water and tea.