Cobra Coil Captive
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Cobra Coil Captive
(4.4)
Qty
Sold as a SINGLE
$ USD
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 (152)
4.4 out of 5 stars
61% (35)
23% (13)
11% (6)
4% (2)
2% (1)
5 Posted on 9/4/2022    by Racine
Verified purchase 16g 3/8" 
pretty nice jewelry but getting the coils on can sometimes be difficult. Initially got it on but then had to take it off and in that process using an opening tool, it got bend out of shape and I wore without coil. Then I got a closing tool and got it back pretty close to its original shape and then was able to put the coil on after many attempts
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4 Posted on 4/7/2022    by Toni
Verified purchase 8g 1/2" 
rips out my nose hair sometimes when I fiddle with the spring but overall a good look.
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5 Posted on 2/7/2022    by Victoria
Verified purchase 14g 3/8" 
At 14g, the coil stays on pretty securely, and I really like the unique look. I only wear it in my ears though, when I tried it in my septum, I think that the coil gave it a funky smell, but that might just be me.
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5 Posted on 4/26/2021    by tiffany
Verified purchase 8g 1/2" 
Super cute, simple, yet a piece that speaks loud!
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5 Posted on 12/29/2020    by Aimee
Verified purchase 16g 3/8" 
I took the coil off of these and put them on black d-rings and I love the look of them!
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