This is a silicone reusable shadow shield for fast and flawless eye makeup application. It catches eyeshadow fallout and creates a straight edge for eyeshadow and winged eyeliner for a perfect application. It doubles as an under eye cooler to help soothe puffy morning eyes. Cool in the fridge or freezer to depuff your undereye area. It’s designed with a grip, so no adhesive is needed.