Body Circle brand stainless steel nipple shields are available in regular and large outside diameter sizes. This large diameter stainless steel nipple shield has a 1-3/16" outside diameter on the 5/16" nipple shield and a 1-7/16" outside diameter for all other sizes. The large stainless steel nipple shield is available in five inside diameter sizes from 5/16" up to 9/16". Choose the one which will best fit the size of your nipple. See below for the regular outside diameter size.