CareShield™ Effortless Confident WearAdhesive Free Circle Liners These are circular, non adhesive nipple covers that stick using the natural heat of your body, not adhesives. They're ultra thin, virtually invisible under tight clothing, and are washable and reusableyou can use them until you lose them Key Features Heat activated adhesionno sticky glue needed, reducing irritation. Medical grade siliconedermatologically tested and suitable for sensitive skin. Ultra thin, invisible edge