Ameda Cut Out nipple shields feature a unique cut-out design which allows for an increased skin-to-skin contact between mother and baby. They encourage baby's latch onto the breast and protect sore or cracked nipples Made of Ultra-thin, flexible silicone, the design has a firmer nipple center to allow for a better grip and softer surround for breast stimulation by the baby. Washable and Reusable. Available in sizes. Ready to use in convenient sterile packaging.