Lansinoh Contact Nipple Shields are effective tools for addressing short term latch-on issues related to premature, small, or ill infants as well as flat or inverted nipples, tongue tie, lip tie, or overactive let-down. The nipple shields have been specially designed to maximise skin to skin contact, are ultra thin, super soft and flexible. They come in 2 sizes ( 20mm and 24mm ) are made from 100% silicone and are BPA free. Comes in a pair, with a protective case for hygienic and convenient storage. All nipple shields should be used under the advisement of a breastfeeding professional. Directions Wash your hands and healthy tips in warm soapy water and rinse thoroughly before use. Apply a little Lanolin HPA cream to the edges of the nipple shield, this will help hold it in place without hands, allowing you to position and hold baby correctly. The cut out part of the nipple will accommodate the baby's nose when breastfeeding. Place the nipple shield over your nipple, aligning the holes with your nipple. Slightly turn the nipple shield so that it perfectly matches the shape of your breast and that your nipple is well in the nipple shield.