Well-Being Feeding Bottle – 250 ml, 2 months plus Adjustable Flow – Plastic The special feature of the Well-Being Feeding Bottle is the Physiological Teat, which allows you to effectively simulate the physiology of the maternal breast. Correct Length Similar to the nipple, the teat stretches to twice its length during sucking. Ribbed Rings Give the teat correct elasticity and texture, making it similar to the nipple. Large Base Ensures maximum support to the lips and helps sucking. Anti-Colic Valve Avoids the swallowing of air and hops to reduce colic, hiccups and regurgitation.