Pigeon Natural Feel Nipple Shields are designed to help with feeding. The nipple shield is used for flat or inverted nipples, sore or cracked nipples, and pain relief when the baby latches on. It also provides protection against 'teething toddlers'. The shield is made from a soft, flexible silicone rubber and provides a wide contact surface. The cut-out section on the top of this shield enables the baby to be in direct contact with the mother's skin, and the holes on the nipple are designed to be exactly the same as the mother's nipple. Size three fits nipples with a diameter of 16-20mm. Key features include a soft, flexible design, a wide contact surface, and direct skin contact. The nipple shield is suitable for women with flat or inverted nipples and helps relieve pain on sore or cracked nipples when feeding. It also prevents choking in an overactive letdown response. To use, clean and sterilize the shields, express some milk onto the tip of the shield, and then place it on the nipple.