Breast-milk is the best source of nutrition for your baby, especially during the first year after birth. In addition, the time spent breastfeeding strengthens the bond between mother and baby. However, where bottle-feeding is necessary, we recommend using the PIGEON Peristaltic Nipple to encourage baby's natural tongue movement. The ultra-soft silicone rubber with double thickness ensures ideal softness and elasticity so baby can latch on easily and comfortably. Also, the shape fits perfectly with your baby's tongue, allowing smooth tongue movement while minimizing air intake. The nipple's roomy base helps your baby open his mouth widely, thereby encouraging steady peristaltic motion. The streamlined shape makes it easy for mothers to hold and keep clean. Made of high quality, durable polycarbonate plastic, the wide-neck opening makes preparation of formula milk for baby simple and effortless. The tip of the nipples is the perfect shape and size to fit in the sucking tongue. Soft Silicone rubber with double thickness allows natural and smooth tongue movement. No more milk than necessary is released through the opening, allowing baby to drink slowly and easily. The wide mouth and slim nipple presents a pleasing shape. The nipple can be introduced into your baby's mouth smoothly and it stimulates the sucking action.