This jewelry can be worn in a variety of piercings including the eyebrow, daith, rook and more. This small curved barbell is a 16 gauge piece with a 5/16 inch (8mm) length. The synthetic opal prong set top measures 3mm, as does the end ball that keeps the jewelry securely in place. This jewelry is made with 316L Surgical Steel with 14k gold plating (yellow gold tone option) and Titanium IP plating (rose gold tone option). Forbidden Body Jewelry is pleased to be your go-to resource for all of your body piercing needs. We are always expanding our diverse collection with the newest styles and trends, so you can continue finding new ways to express your individuality through the art of body jewelry. Whether you are looking for a piece that is simple and understated, eye-catching and pretty, bold and sexy, or somewhere in between, we will help you find the piece that is uniquely you. You can reach out to our Customer Happiness Team at any time with questions, concerns and inquiries – we are passionate about helping you LOVE your piercings!