14g–12g Internally Threaded 4mm UV Ball — Price Per 1

Internal • Price Per 1
In stock
As low as $0.99
More Information
SKU derm026-4mmUV
Weight 0.0010
Brand Painful Pleasures
Material Acrylic
Threading Internal 1.2mm

4mm UV Ball for 12g & 14g Internally-Threaded Body Jewelry (Price Per 1)

Light up the night with our 4mm UV balls for 12g and 14g internally-threaded body jewelry! You'll be the star of the next black light party or rave you go to when you pair these acrylic UV balls with straight barbells, dermal anchors, surface barbells and any other type of internal jewelry with a matching internal 1.2mm thread pattern. Even in daylight, these mid-size 4mm UV balls are bright, fun additions to any piercing.

Note that each of these 4mm acrylic UV balls is sold individually (price per 1) and separately from our internal body jewelry, including dermal anchors, surface barbells, labret studs, straight barbells, bent barbells and eyebrow rings.


  • Ball Material: Acrylic
  • Ball Diameter: 4mm (5/32")
  • Thread Length: 2mm (3/32")
  • Threading: Internal 1.2mm
  • Quantity: 1 Ball (Price Per 1)

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

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



View Shipping & Return Policies
Reviews / Questions