14g-12g Internally Threaded Square Prong-Set 2.5mm Round Opal Top - Price Per 1

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SKU derm309-anod
Weight 0.0011
Brand Painful Pleasures
Material Titanium 6Al-4V-Eli ASTM F-136
Threading Internal 1.2mm

2.5mm Round Opal Top with Square 4-Prong Setting – Internal 1.2mm – Price per 1

This 2.5mm Round Opal Top is featured with a classic square 4-prong setting that will beautifully show off your piercing. It has internal 1.2mm threading with a 2mm post length, which is compatible with our standard 14g to 12g and select 10g to 8g internally threaded jewelry with a 2mm rise; see full list of compatible jewelry below. There are 17 different opal color options available and for a small fee, the titanium prong-setting can be anodized to one of 26 different colors at our Hanover, MD Painful Pleasures facility. This listing is for one 2.5mm round opal top. If you would like another size, please view the 2mm3mm, 3.5mm, or 4mm size listings of the same style.


  • Material:  Synthetic opal
  • Post Material:  Titanium 6Al-4V-Eli ASTM: F-136
  • Opal Size:  2.5mm
  • Threading:  Internal 1.2mm; 2mm post length
  • 17 Opal color options
  • 26 Anodized color options
  • Square prong-set; 4 prongs
  • Available in 2mm3mm, 3.5mm, and 4mm
  • Price per one 2.5mm opal top

14g Compatible Jewelry:

14g Stainless Steel Flat Back Labret Post
14g Stainless Steel Rounded Back Labret Post
14g Titanium Labret Post
14g Stainless Steel Straight Barbell 
14g Titanium Circular Barbell 
14g Stainless Steel Bent Barbell 
14g Titanium Dermal Anchor
14g Blackout Straight Barbell 
14g Titanium Surface Barbell 

12g Compatible Jewelry:

12g Stainless Steel Labret Post 
12g Stainless Steel Straight Barbell 
12g Stainless Steel Circular Barbell 
12g Stainless Steel Bent Barbell 
12g Titanium Dermal Anchor
12g Blackout Circular Barbell

10g Compatible Jewelry:

10g Titanium Surface Barbell
10g Titanium Dermal Anchor

8g Compatible Jewelry:

8g Titanium Dermal Anchor

View All 1.2mm Internally Threaded Jewelry

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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