Features： 1、DOUBLE LAYER PROTECTION: Inner layer for nipple protection, outer layer for areola protection, avoid nipple injury, for mother who has wounds on nipples. 2、DOUBLE LAYER SUCTION CUP: Strong sealing, effectively adsorbs the breast, and the outside air does not enter the milk area to prevent the baby from flatulence. 3、BUFFER TYPE MILK OUTPUT: Effectively prevent the baby from choking on milk. Imitation of breast arc, easy for babies to use. Help mothers with sunken, flat and short nipples achieve easy breastfeeding. 4、EASY CLEANING: Support a variety of cleaning methods, which includes boil, steam and UV. Comes with a storage box, easy to carry, suitable for home and travel use. 5、SOFT SILICONE: Nipple shield is made of silicone material, eco friendly and odorless, skin friendly and soft, flexible, wear resistant and durable. Specification： Item Type: Nipple Shield Material: Nipple Shield: Food Grade Silicone, Storage Box: Food Grade PP Shelf Life: 5 Years Cleaning Method: Boiling, steam, UV rays can be used Package List： 1 x Nipple Shield 1 x Storage Box