Flat Backs No Hotfix can be easily applied to a wide range of carrier materials, where ironing is not possible. They are durable, long lasting and versatile. This makes them the ideal decoration for watches, accessories, picture frames, bags, electronic devices, pens and pencils, fingernails etc. They are available in a multitude of colours, sizes and cuts - among them the Swarovski crystals XIRIUS Rose, the new generation of brilliance. SS20 size stone is about 4.7mm in diameter.