Flatback Post Length Size Guide

The right post length ensures comfort, proper healing, and a clean, flush look against your ear. Too short and the backing may press into the skin; too long and the post may snag or shift.

Our flatbacks are measured from the back of the disc to the tip of the post (not including the front piece).



Post Length Guide by Piercing Type


Piercing Type Recommended Length Notes
Lobe (standard) 5mm – 6mm 5mm for very thin lobes; 6mm for most healed lobes
Lobe (thick / stretched) 8mm For thicker earlobes or stacked looks
Helix / Cartilage 6mm – 8mm Depends on ear thickness; 8mm recommended for fresh piercings
Tragus 5mm – 6mm 5mm for a snug healed fit; 6mm for more comfort
Conch 8mm – 10mm Thicker cartilage area; size up if unsure
Daith 6mm – 8mm Curved anatomy; consult your piercer
Rook 8mm Deeper fold requires longer post
Industrial 10mm+ Consult your piercer for exact sizing




Tips for Getting the Right Fit

  • 5mm — ideal for very thin lobes or snug healed piercings with minimal tissue.
  • 6mm — the most versatile length; suits most healed standard piercings.
  • 8mm — great for thicker ears, cartilage, or any healing piercing needing extra room.
  • Fresh or healing piercings need extra room for swelling — go 1–2mm longer than usual.
  • Not sure? 6mm is a safe starting point for most healed lobe piercings.
  • Your piercer can measure your exact ear thickness with a calliper for the most accurate fit.



Still Not Sure?

We're happy to help! Reach out to us at hello@apierceoflife.com or DM us on Instagram and we'll guide you to the right size.