Earrings on a chain for threading into the ear are made of perspex and surgical steel, the flake has a diameter of approx. 13 mm. Options available are Opal White, Light Blue, Rainbow Mirror and Silver Mirror. The chain is 8cm long and you can adjust the length as you like. The earrings are light, they do not pull the chain, so there is no need for stops. If you have a larger hole, you can add a stop as needed. If you would like a different color option, feel free to write :-)