The listing, 8g Dark Blue Steel Tunnels with Screw-On back has ended.
This is perfect for someone who doesn't like fumbling with o-rings!
The back screws on and off and the tunnels are extremely comfortable for wearing while sleeping.
I highly encourage waiting until after the stretch piercing has healed fully since the last stretch and using some kind of lubricant or healing balm to insert the tunnel. When inserting the piece, the track for the screw can scrape the freshly stretched skin, causing pain and possible bleeding.
Used once, has been disinfected four times. Cleanliness is guaranteed.