Long Triangle, Arch or Triangle - Duotone Black + White StudsOur duotone studs are made of black and white acrylic that's been intricately engraved in a modern geometric pattern. Available in your choice of triangles, circles, rectangles, arches or polygons! modern, laser engraved acrylic studs ranging in size from 9 11mm arrive packaged on thick, bright white Bird of Virtue card with care instructions printed on the back surgical steel posts with soft, clear rubber grips a great hypo allergenic earring for