Earth Mama Angel Baby Breastfeeding Booby Tubes are a natural, safe, gel-free breast pack made with a 100 percent organic cotton shell and filled with all-natural flax seed. These tubes safely deliver warm, moist heat to tender breasts to encourage milk flow, maintain open milk ducts to prevent clogged ducts, promote let-down and comfort the symptoms of infection or mastitis. Earth Mama Angel Baby Breastfeeding Booby Tubes reduce the swelling and tenderness of engorgement and comfort breasts during weaning. Helps ease the discomforts of your mamariffic mammaries. Designed with extra care to help reduce the risk of burns. Use warm or cold, depending on your nursing needs. Store in the freezer.