Titanium Internally Threaded Circular Barbell
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Discontinued Titanium Internally Threaded Circular Barbell
(4.6) LAST CHANCE
25% OFFSavings: Original price
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Metal Mafia polishes each circular barbell to have a mirror finish and offer these implant grade titanium circular barbells in a variety of colors.

  • Each barbell has two internally threaded balls that both unthread.
  • The gap between the balls vary from piece to piece between 4mm-2mm, depending on the diameter of the threaded balls and the inner diameter of the circular.
In our drop-down menus for adding to cart, we show the gauge of the item you are ordering, then the length/diameter, then the ball size if it has any:

Jewelry is measured through a gauge system (conversion chart below). The higher the gauge number the smaller the wire is. For reference, a standard "earring" is usually 20 gauge. Jewelry gauges can vary between manufacturers. There is no universal regulation on companies to make a standard size in body jewelry. This is because some jewelry is made outside of the USA and measured in millimeters. And in the USA jewelry is measured in inches.

GAUGE CONVERSION CHART:
Gauge Millimeter Inch
20g .81mm
18g 1mm
16g 1.2mm 3/64"
14g 1.6mm 1/16"
12g 2mm 5/64"
10g 2.4mm 3/32"
9g 2.7mm
8g 3.2mm 1/8"
7g 3.5mm
6g 4mm 5/32"
4g 5mm 3/16"
5g 4.5mm
2g 6mm 1/4"
1g 7mm
0g 8mm 5/16"
00g 9mm to 10mm 3/8"
  11mm 7/16"
  13mm 1/2"
  14mm 9/16"
  16mm 5/8"
  19mm 3/4"
  22mm 7/8"
  25mm 1"
Show sizes above 1 inch

Rings

Rings are an essential item that can be worn in many piercings. They come in various styles:
  • Captive bead rings - These use tension to hold a bead in place.
  • Clickers - These use a hinge to open and close the ring.
  • Segment rings - These have a "segment" that comes completely out of the jewelry similar to removing a bead. But it looks like a completely seamless piece of jewelry.
  • Seamless rings - These rings require bending to open & close.
How to measure rings
  • Gauge - This is the thickness of the ring itself.
  • Diameter/Length - Measure directly across the inside center of the ring.

Straight Barbells

Straight barbells are commonly worn in various ear projects, nipples, and tongue piercings.
How to measure straight barbells
  • Gauge - This is the thickness of the post/bar itself.
  • Length - Measure directly across the post between the ends.

Double Flare Plugs / Eyelets / Gauges

Commonly worn in earlobes, but can be worn in other stretched piercings.
How to measure double flare plugs
  • Gauge - Measure the size of the plug across the middle.
  • Wearable area - Measure straight across the side of the plug between where the flares start.
  • Flare size / rise - Measure the distance from the side of the plug to where the flare ends.

Single Flare Plugs / Eyelets / Gauges

Commonly worn in earlobes, but can be worn in other stretched piercings.
How to measure single flare plugs
  • Gauge - Measure the size of the plug across the middle.
  • Wearable area - Measure straight across the side of the plug between where one flare starts and where the o-ring starts.
  • Flare size / rise - Measure the distance from the side of the plug to where the flare ends. (see image of double flare plugs)

No Flare Plugs / Eyelets / Gauges

Commonly worn in earlobes, but can be worn in other stretched piercings.
How to measure no flare plugs
  • Gauge - Measure the size of the plug across the middle.
  • Wearable area - Measure straight across the side of the plug between the o-rings.

Teardrop Shaped Plugs

Worn in earlobes
How to measure teardrop shaped jewelry
  • Gauge - Add the height + width and then divide by 2. Then use the conversion chart to get the closest gauge.
  • Wearable area - Measure directly across the plug between where the flares begin.
  • Flare size / rise - Measure from between the flares to the edge of where the flares end.

Curved Barbells

Curved barbells are commonly worn in various ear projects & eyebrows.
How to measure curved barbells
  • Gauge - This is the thickness of the post/bar itself.
  • Length - Measure directly across the post between the ends.

Circular Barbells

Circular barbells are commonly worn in various ear projects, septums, nipples, and lips.
How to measure circular barbells
  • Gauge - This is the thickness of the post itself.
  • Diameter/Length - Measure directly across the inside center of the circular.
JEWELRY THREADING TYPES

Externally threaded

Internally threaded

Threadless
SIZE COMPARISON GUIDES
Enlarged example of 1" on ruler
Ruler example
Customer Photos
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Customer Reviews (16)
4.6 out of 5 stars
35% (6)
6% (1)
5 Posted on 8/8/2022    by Mackenzie
Verified purchase 10g 5/16" High Polish - 5mm balls
Extremely comfortable, very much my go to septum ring
Was this review helpful to you?
5 Posted on 6/12/2022    by Alina
Verified purchase 10g 3/8" Blurple - 5mm balls
I love it!! It fits perfectly and it's just as I'd hoped it would be!
Was this review helpful to you?
4 Posted on 4/22/2022
Verified purchase 16g 5/16" Rose Gold - 3mm balls
High quality. I like that the spacing between the balls is minimal, therefore, be mindful that this item can't be flipped up to conceal. Balls are easy to screw in. One star taken off for brassy rose gold color.
Was this review helpful to you?
5 Posted on 12/19/2021    by Shaun
Verified purchase 16g 7/16" Bronze - 3mm balls
Looks great in my orbital. Bronze is a beautiful, deep bronze. Ball screws on easily!
Was this review helpful to you?
5 Posted on 10/4/2021
Verified purchase 16g 3/8" Dark Purple - 3mm balls
If you're looking for jewelry that you can flip up, this isn't it. I love it though and it looks great in my nose.
Was this review helpful to you?
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