Playtex nipple medium flow 2 count. Is designed for use with the Playtex drop ins system which mimics breastfeeding and reduces gas and colic. The nipple medium flow 2 count. Features a raised nipple textured area that mimics the breast encouraging your baby to latch on. nipple medium flow 2 count. Comes in a two count which allows you to prepare two bottles at one time. The medium flow 2 count. Is also a BPA free product.