Sun Metal Alloy Nail Art Deco Nail Charms. They are 1 cm x .5 cm. The pieces are available in gold. They are reusable and can be applied to natural or polished nails. These charms can also be used to dress up other objects like: key chains, jewelry, zippers, and other items. They are very easy to apply and can be done by a nail tech or even yourself. This is a great way to make yourself have a unique look all your own.