BlackKey Yin and Yang Magnetic Metal Eyeglass Badge Holder, Eye Glass Holding Brooch -195 Material: Stainless iron & epoxy sticker; Outer & inner diameter: Approx. 2.9cm (1.15") x 2.1cm (0.83"); Easy to put on and take off, perfect for your shirt, blouse, t-shirt etc.; Lightweight with fashionable printed image epoxy sticker as shown (The image may be a little smaller than you thought, please notice the size); Package include: 1 x magnetic eyeglass badge holder; 1 x badge clip with clear strap.