This is a 18g 4mm Threadless DISC Backings in VARIOUS sizes!  This is compatible with ALL Threadless posts available on this website and for any threadless jewelry items that have been purchased from Nathan's previously.  PLEASE confirm the measurement with a ruler/tape measure before purchasing or email us for help!  

***PLEASE EMAIL us at [email protected] if you have questions as to whether this piece will fit your anatomy.  We CANNOT accept returns on open packages of jewelry and/or jewelry that's been in the body for HEALTH REASONS!

OPENING THE PRE-STERILIZED PACKAGES NEGATES YOUR ABILITY TO RETURN AN ITEM.***