Booby Tubes from Earth Mama Organics are clever little, gel-free breast packs made with an organic cotton shell and filled with fresh, pliable flax seed. Use warm or cold, depending on your nursing needs. When heated, Booby Tubes deliver warm, moist heat to tender breasts; when stored in the freezer they offer cooling comfort. Traditionally used to help ease breastfeeding discomfort, heat can help encourage milk flow, avoid clogged ducts, promote let-down and comfort the symptoms of infection, and cold is used to help reduce the swelling and tenderness of engorgement and weaning.