Breast shields and breast shield inserts for Ardo Pumpset. With this breast shield set, you have a customized solution for your Ardo Pumpset. Poorly fitting breast shields can hinder efficient pumping, cause discomfort, and lead to sore nipples. This set includes two breast shields with a diameter of 31 mm. Additionally, two inserts for the breast shields in 28 mm are provided. This allows you to reduce the larger 31 mm breast shields to 28 mm using the inserts, giving you maximum flexibility.