LOBE / SECOND LOBE
Standard: 6mm / Thinner ear: 4-5mm / Thicker ear: 7-8mm

ANTITRAGUS
Standard: 6mm / Curved Bar inner length: 6-8mm

SNUG
Curved bar inner: 8mm

INNER CONCH
Standard: 6mm / Thicker ear: 8-10mm / Hoop inner length: 9-10.5mm

CARTILAGE
Standard: 6mm / Hoop inner length: 5-6mm

HELIX
Standard: 6mm / Thinner ear: 4-5mm / Thicker ear: 7-8mm

OUT CONCH
Standard: 6mm / Thicker ear: 7-8mm

FORWARD HELIX
Standard: 4-5mm

ROOK
Curved Bar inner length: 6mm / Thicker ear: 7-8mm

DAITH
Hoop inner length: 8mm

TRAGUS
Standard: 6mm / Thinner ear: 4-5mm

Note: These guidelines are for reference only. Please note that there may be individual differences depending on the shape of your ears.