These are double flared 7/8 INCH (22MM) guage tunnels the same style as the ones seen in the picture. THIS AUCTION IS FOR A PAIR. The back is held on with by a threaded nut. The material is 316L surgical steel. A PAIR LIKE THIS WOULD GO FOR MORE THAT $80.00 AT ANY STUDIO. THIS AND ALL MY JEWELERY IS NEW AND HAS NEVER BEEN WORN. THE PICTURE DOES NOT DO THIS PIECE JUSTICE. SHIPPING IN A PADDED MAILER. I ACCEPT PAYPAL. THANKS AND HAPPY BIDDING. 955st