Circular Barbells (Horseshoes): The Flippable Ring
A circular barbell, better known as a horseshoe, is an open ring shaped like a U, with a removable ball screwed onto each end. It is part ring, part barbell, and its open shape gives it a distinctive look and a practical trick: on a septum it can be flipped up inside the nose to hide the piercing. Here is how a circular barbell works and what it suits.

Vanhess sells piercing jewellery in Coquitlam; we do not perform piercings. Get pierced at a professional studio, then use this guide to choose your circular barbell jewellery.
What a circular barbell is
A circular barbell is a curved bar bent into an open horseshoe, with a threaded ball on each end. You unscrew one ball, pass the ring through, and screw it back on. Because it is open at the bottom rather than closed, it reads differently from a full ring, showing two balls at the front. That open shape is also what lets a septum horseshoe be flipped up out of sight, which is a big part of its appeal for a discreet-on-demand piercing.
Which piercings a circular barbell suits
Circular barbells are a favourite for the septum, where the flip-up trick hides the piercing in seconds, and they suit healed nostrils, helixes, lobes, and nipples too. They are versatile and easy to change, since only a ball unscrews. On a septum the diameter matters, because it needs to be large enough to flip up comfortably; on ear placements, choose a diameter that sits snugly.
Gauge and size
| Detail | Common range for circular barbell |
|---|---|
| Construction | Open horseshoe bar with a threaded ball on each end |
| How it opens | Unscrew one ball, insert, screw back on |
| Gauge | Usually 16G or 14G |
| Best for | Septum (can flip up to hide), and healed ear placements |
Our sizing and gauge guide explains these numbers.
Styling
A circular barbell has an edgier, more distinctive look than a plain hoop, with its two balls showing at the front. Plain balls keep it clean, gem or spiked ends make more of a statement, and on a septum it can go from visible to hidden in a moment. It suits a bolder body-jewellery aesthetic and pairs well with other barbells and rings.
What to check when buying circular barbell jewellery
Before you buy, confirm a few things so the piece fits and heals well:
- Gauge match. Buy the same gauge as your piercing, usually 16G or 14G for a circular barbell. Too thin and it moves in the channel; too thick and it will not fit.
- Smooth through the piercing. Choose threadless or internally threaded jewellery so nothing rough passes through the channel. Externally threaded posts drag screw threads through and irritate it.
- Material. Implant-grade titanium (ASTM F-136) or solid nickel-free gold only. Skip anything plated or unmarked.
- Diameter. Match the diameter to the placement; on a septum, a diameter that lets it flip up to hide is part of the appeal.
- Finish. The piece should feel glass-smooth, with no rough edges or casting pits that can snag tissue.
Style and gemstone options
Circular barbell ends come as plain balls, cones, spikes, or gem-set balls, from cubic zirconia to genuine diamond, in yellow, white, or rose solid gold and implant-grade titanium. Swapping the ends changes the look, and the balls are quick to unscrew. For a fresh piercing, keep it a safe metal with smooth internally threaded ends, and follow your piercer on diameter.
Common mistakes to avoid
- Changing too early. Swapping jewellery before the piercing is fully healed is the top cause of bumps and setbacks. Wait for your piercer's go-ahead.
- Cheap or plated metal. Nickel and worn plating cause most "my piercing is reacting" problems. Stay with implant-grade titanium or solid gold.
- The wrong size. A post or ring that is too long, too short, or the wrong gauge moves, snags, or presses. Match your gauge and get the length or diameter right.
- Over-cleaning. More than a twice-daily saline rinse, or using alcohol and ointments, slows healing rather than helping it.
- Sleeping on it or knocking it. Pressure and snags are a common cause of irritation, especially in the early weeks.
Aftercare in brief
Whatever you wear, a healing piercing needs the same simple routine: clean it once or twice a day with sterile saline, keep your hands off it, do not twist or remove the jewellery, and leave it in until a professional says it is healed. Stay out of pools, hot tubs, and lakes, and avoid knocks and sleeping on it in the early weeks. Most trouble comes from cheap metal or the wrong size rather than too little cleaning, so the jewellery you choose matters as much as the routine. Our aftercare guide has the full method, and our guide to bumps versus infection covers what to watch for.
Key Takeaways
- A circular barbell (horseshoe) is an open U-shaped bar with a removable ball on each end.
- On a septum it can be flipped up inside the nose to hide the piercing.
- It suits the septum and healed ear placements, and is easy to change.
- Choose the diameter for the placement, in the right gauge and a safe metal.
Frequently Asked Questions
What is a circular barbell or horseshoe?
An open, U-shaped bar with a threaded ball on each end, part ring and part barbell. It shows two balls at the front and is open at the bottom. On a septum, that open shape lets it be flipped up inside the nose to hide the piercing.
Can you hide a septum with a circular barbell?
Yes, that is one of its main appeals. A septum horseshoe can be flipped up inside the nose so the piercing is out of sight, then flipped back down. Choose a diameter large enough to flip comfortably. A dedicated retainer is another discreet option.
What gauge is a circular barbell?
Usually 16G or 14G depending on the placement; the septum is commonly 16G or 14G. Match the gauge and diameter your piercer fitted, and remember a septum needs enough diameter to flip up.
What piercings can wear a circular barbell?
The septum is the classic, and healed nostrils, helixes, lobes, and nipples suit them too. They are versatile and easy to change since only a ball unscrews. For fresh piercings, follow your piercer's advice and use a safe metal.
Sources
- Association of Professional Piercers — Jewelry for Initial Piercings
- Association of Professional Piercers — Aftercare
General information, not medical advice. See a professional piercer for the piercing itself. Reviewed 20 July 2026.
Visit Vanhess
We stock circular barbells in implant-grade titanium and solid gold at 2929 Barnet Highway, Unit 2424 in Coquitlam. Browse our piercing jewellery, or call +1 (604) 653-6449. See the septum clickers and retainers guide next.
