Lobe
Stud or flatback; hoop for a healed piercing
First, upper and stacked lobe placements can need different lengths and diameters. Match the established gauge and measure each placement.
Oumo Jewelry Piercing Academy
Oumo Jewelry Piercing Academy
Practical guidance for choosing, wearing and caring for piercing jewelry.
General education only: Anatomy, fit and healing vary. Ask a qualified professional piercer about a fresh, irritated or changing piercing.
Quick Guide
Find your way through the Academy.
Explore by Piercing
Choose a placement to find common sizes, jewelry styles, fit notes and related guides.
Helix
Flatback labret; a fitted hoop for a healed piercing
- Typical Gauge
- 16G–18G
- Healed Post
- 6 mm
- Hoop Inner Diameter
- 6–10 mm
Measure the wearable post or hoop inner diameter to suit the channel and distance to the ear edge.
Forward Helix
Flatback labret
Check wearable post length and room for the decorative end between nearby folds. Choose dimensions for your own placement.
Vertical Helix
Jewelry designed for the vertical placement
Match the post shape, length and end orientation to the vertical channel; a standard helix size does not determine this fit.
Flat
Flatback labret
Measure the wearable post length through the flat cartilage area and allow space for the end design.
Tragus
Flatback labret; a fitted hoop for a healed piercing
- Typical Gauge
- 16G–18G
- Healed Post
- 6 mm
- Hoop Inner Diameter
- 6–8 mm where anatomy allows
Check tissue thickness and clearance around the tragus when selecting the post or ring.
Conch
Flatback labret; a fitted hoop for a healed piercing
- Typical Gauge
- 16G–18G
- Healed Post
- 6–8 mm
- Hoop Inner Diameter
- 10–12 mm
A post and a hoop need different measurements. A conch hoop must clear the outer ear comfortably.
Rook
Curved barbell; fitted ring after healing
For a curved barbell, check how the maker measures its length. A ring needs a separate inner-diameter measurement.
Daith
Fitted ring or circular barbell
Match the ring diameter and shape to the inner-ear fold. Check that the closure and decorative area sit comfortably.
Industrial
Straight barbell for two aligned channels
The bar must fit both channels and clear the ear between them. Have the full span and alignment measured; do not use a single-post reference.
Snug
Placement-specific barbell
The fold and channel angle determine the shape and wearable length. Have a piercer confirm the fit before choosing a replacement.
Anti-tragus
Placement-specific barbell or ring
Choose the shape and dimensions for the anti-tragus fold. Bar length and hoop inner diameter are different measurements.
These are common references for healed piercings, not initial-jewelry prescriptions. Anatomy, piercing angle, swelling and jewelry design affect fit. A professional piercer's measurement overrides this guide.
Explore the Academy
Build your knowledge from piercing basics to fit, care and styling.
- Piercing BasicsLearn how gauge, fit, material and closure shape your jewelry choice.
- How to WearStep-by-step guides for six jewelry and closure types.
- Materials and QualityExplore our materials, actual-product sample testing and supplier quality process.
- Healing and AftercareRead general care guidance and escalation advice.
- Ear StylingExplore curated ear inspiration and creator picks.
Open the complete How to Wear guide
How to Wear · Step-by-Step Guides
Choose your jewelry type to open its step-by-step wearing guide.
- Internally ThreadedIdentify the screw-in end and follow the opening and closing steps.
- ThreadlessUnderstand the push-fit system and how to handle compatible ends.
- Clicker RingsFind the hinge and closure, then follow the ring guide.
- Seamless RingsLearn how to open and realign a seamless ring.
- Horseshoe RingsIdentify the removable end and your horseshoe closure type.
- Curved BarbellsFollow the guide for the bar shape and compatible end system.
Shop with Confidence
Tested with care, sourced with accountability.
Oumo Jewelry works with manufacturing partners and uses third-party random-sample testing as part of its ongoing supplier quality-control process. We select samples from the titanium jewelry we sell, supplied by those partners.
ASTM F136
Our current SGS reports show that a tested Oumo Jewelry finished titanium piercing-jewelry sample met the ASTM F136 chemical-composition requirements, including the applicable product-analysis tolerance.
Lead & cadmium
In a separate tested sample, SGS reported lead and cadmium as not detected at the stated method detection limits.
Supplier verification
When Oumo Jewelry changes manufacturing partners, a new random-sample test is arranged as part of supplier verification.
Each report applies to the sample and test scope identified in that report. Together, the reports form part of Oumo Jewelry's ongoing supplier verification and quality-control process.
