The cutest little flower earring cards. 1mm thickness. 4 different sizes to fit your needs. Size: Small (S): 40mm, 1.4mm holes: good for studs, normal size dangles. Medium (M): 46mm, 1.8mm holes: good for bigger dangles, bigger size of hoops. Large (L): 52mm, 2.0mm holes: good for big earrings in general. Extra (XL): 60mm, 2 sets of holes (2.