Style: Electric Material: Polypropylene (pp) Size: 20*9*20cm Product suction:≤ -0.38kPa Rated voltage: 100-240V~ Standard diameter breast suction Touch the keys It doesn't contain bisphenol A High temperature resistant Can be disinfected by boiling water Non-toxic harmless Health tips: .Wash your hands before expressing or handling breast milk with a breast pump .Breast pump, warm the breast with a hot towel before milking, massage to stimulate the areola so that the breast is completely unblocked . Milking with a pressure that suits you Stop milking when your breasts or nipples feel pain . Milking only needs to squeeze an eighth of the amount (do not exceed 20 minutes) .Use a container with a lid when storing breast milk .Clean up breast milk that has been refrigerated for more than 72 hours (3 days) .Do not feed refrigerated breast milk and fresh breast milk together Defrost or link the refrigerated breast milk in a breast warmer for feeding .After the refrigerated breast milk is thawed, if the baby cannot drink it after 24 hours, please do not refrigerate the breast milk repeatedly, dispose of the rest and sterilize the container