Being an essential part of the bottle, the teat is important for the growth of the baby and if the correct flow speed is selected will ensure that babies are aided in their development. The oval shape has been developed alongside medical experts with your baby's growth in mind. It is modelled on a mother's nipple and the teat has been adapted for the low viscosity of breast milk.It is also suitable for formula milk. MAM Bottle Teats are ideal for an easy switch between breast and bottle thanks to patented SkinSoft silicone, offering a silky surface and familiar feel that 94 Percent of babies accept. The air ventilation valve ensures that the drinking flow is smooth and the teats can be used with any MAM bottle, including MAM Easy Start Anti Colic Baby Bottles. Slow-Flow Teats are suitable for newborns. (Each sold separately) Also in the range: Extra-Slow-Flow Teats, Medium-Flow Teats, Fast-Flow Teats and Cross- Cut Teats