BPA/BPS free* *BPA/BPS free: This Mam product is made from materials free of BPA & BPS Mam microwave steriliser & carry box ideal for on the go! Available in three sizes: Size small 17mm Size medium 20mm Size large 23mm Skin soft™ silicone - For familiar feeling Mam shape - Allows baby to feel & smell mum's skin Textured surface - Lets air between baby & nipple shield / especially gentle on baby's skin Material - Very thin silicone A short-term breastfeeding aid. To be used in consultation with a midwife or health consultant.