Sorry, i didn't take any. They are the screw in kind. If you were to turn them on their sides they would look like this. http://www.amazon.com/Rhinestone-Crystal-Tunnels-Expander-Piercing/dp/B00D5OT6SA/ref=sr_1_7?ie=UTF8&qid=1403210245&sr=8-7&keywords=screw+in+gauges