Gorilla Glass Concave Obsidian Double Flared Plug — Price Per 1

Gorilla Glass • Price Per 1
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Weight 0.0660
Brand Gorilla Glass
Material Obsidian

Double-Flared Concave Obsidian Plug – Obsidian Glass Body Jewelry by Gorilla Glass – Price per 1

Gorilla Glass is reputable for their simple, unique glass body jewelry. Obsidian is a naturally occurring volcanic glass and can vary in color from a pure jet black to a shimmery gray. These Concave Obsidian Plugs were proudly crafted by third generation obsidian carvers in Mexico, resulting in an incredibly smooth and comfortable piece of jewelry. They are double-flared for a secure fit and have a concave front and back. It is available from 12mm up to 25mm with the standard 7/16” – 1/2” plug length; please view the Gorilla Glass Size Chart in the gallery of images for size reference. The Concave Obsidian Plug is priced per one; please check out for Quantity 2 for a pair.


  • Material:  Obsidian Glass
  • Gauge:  12mm – 25mm
  • Plug Length:  Standard 7/16” – 1/2”
  • Size reference chart in image gallery
  • Available in 28mm – 51mm sizes (custom-made)
  • Handmade in Oaxaca, Mexico
  • Price per one Gorilla Glass Concave Obsidian Plug
Size Table

Standard Body Jewelry Measurements

The following webchart is a quick reference guide for standard body jewelry measurements and how to measure basic body jewelry. Please print this webchart to help measure your body jewelry accurately.

Size Reference Chart

Visit our PainfulPleasures Infocenter for additional body jewelry information. There, you will find detailed articles on standard body jewelry sizes, how to measure body jewelry, basic body jewelry, and more.

Standard Body Jewelry Threading

Ensure compatibility between standard (non-custom) PainfulPleasures body jewelry parts using the tables below. More information on threading, including custom thread patterns, can be found in our Threading Infocenter article.

Internally threaded jewelry has a threaded post on the top and/or end, which is then inserted into a threaded hole in the barbell shaft.

Internal Thread Patterns by Gauge


18g, 16g

14g, 12g


Internal Thread Pattern

0.8mm or 0.9mm



Externally threaded jewelry has a threaded post on the barbell shaft, which is then inserted into a threaded hole in the top and/or end.

External Thread Patterns by Gauge


18g, 16g

14g, 12g, 10g

External Thread Pattern



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