Easy Air teat with patented valve: anti-colic, anti-regurgitation, anti-aerophagia. - wide and round tip adherent to the shape of the breast and adapted to the baby's mouth - grooves that prevent the walls from sticking during suction - patented valve that allows regular air circulation and helps reduce the risk of colic, regurgitation and aerophagia - extra soft, smooth and flexible silicone, in modo that the baby can suck easily. Texture as soft as mother's skin - 3 speeds to adapt to the baby's appetite during feeding. Easy to spot, even in the middle of the night, thanks to the raised dots. - wide collar that favors the opening of the baby's mouth