LOVI Dynamic Feeding Teat for pumped milk was designed with the help of neurologopedists. It is built from non-uniform layers of silicone: a soft, thin, dynamic extending ending and a wide, thick, hard, contoured base. This is why it does not disturb the suckling reflex and breastfeeding. REMEMBER: LOVI brand recommends breastfeeding as the healthiest method for feeding. Alternative feeding methods should be used after consulting a doctor, midwife or pharmacist if breastfeeding is impossible or insufficient.