Stay on al day- The experiment proves that the viscosity remains unchanged after 8 hours of long-term use. Sticky enough to keep in place until you're ready to take them off. And the premium adhesive is easy to remove and won't leave red marks on your delicate skin.Medical-Grade Hypoallergenic Silicone - nipple pasties are made from hypoallergenic silicone, these CoverUps are gentle on the skin which is ideal for those with sensitive skin. Gentle, pain-free, and wont leave any red marks on your skin after use. Wear, wash, and re-wear these covers without getting skin irritations! True freewheeling!Suitable for any occasion - nipple pasties are light and compact, easy to carry, suitable for A-C size. It's the best choice to wear strapless dresses, low-cut dresses, backless dress, evening dresses, shirts and wedding dresses.NO-SHOW Comfort - Thin, smooth, and nearly invisible nipples concealer that has a contour shape giving you that ultra-smooth appearance on any top!Theyre made from ultra-thin, breathable silicone that feels just like a second skin Just peel, stick and go - Easy as 1-2-3! Say goodbye to uncomfortable brassieres and annoying visible straps!Repeated Use - nipple covers can be reused for about 50 times. After use, wash with warm water by hand. Pay attention to put the pasties nipple covers in a ventilated position and avoid exposure after cleaning, and then cover it with protective film after drying. The adhesive can remain firm after proper cleaning.