01-10-2012, 11:46 AM
All you need is the internal diameter (i.d.). Usually these are still in inches and most are readily available from eBay really cheap.
Disclaimer: The above is not to be taken to heart and is probably a joke, grow up you big girl.
![[Image: Sig500x130.png]](http://i430.photobucket.com/albums/qq25/chris_rx71/Sig500x130.png)
![[Image: Sig500x130.png]](http://i430.photobucket.com/albums/qq25/chris_rx71/Sig500x130.png)