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. SS12 size stone is about 3.1mm in diameter. This latest flatback style stone is the most brilliant from Swarovski to date and is named after the brightest star, Xirius in the galaxy.