Matte nipple covers with silicone adhesive backing (reusable). Can be worn with or without a bra. Three skin tones, One Size: 7cm diameter, Waterproof: Can be worn under a bathing suit, Washable: Can be washed to regenerate the adhesive, Transportable packaging: Comes with a travel case, Silicone adhesive: Hypoallergenic, MSDS and SGS certified The adhesive effect will be reduced by sweat, moisturizers, perfumes and similar skin products. Perkies Petals, Nips and Pierced Nips should be washed with mild soap and air dried to activate stickiness. Do not wear longer than 8 hours.