It's Prime Day! Save 15% Sitewide With Code: PRIMEDAY

Skip to product information
1 of 5
$2.00 $2.00 Pro Price
$2.00 $2.00 Pro Price
Sale Out of Stock

Peak Pen Spare Parts

Peak Pen Spare Parts


$2.00 Pro Price

75 available
View full details


Replacement Bag of Six O-Rings and Three Drive Bar Nubs for Peak Kyan or Matrix Pen Rotary Tattoo Machines

This bag of accessories, exclusively designed for the Peak Kyan or Matrix Pen, includes three outer O-rings, three inner O-rings, and three drive bar nubs. Overtime, the nub located on the drive-shaft of your machine's motor will become worn down and require replacement. Replacing missing or worn down O-rings can also help to reduce vibrations and keep tattoo procedures smooth and comfortable. Inner O-rings are color-coded black and outer O-rings are color-coded brown.


  • 3 Outer O-rings (Black) and 3 inner O-rings (Brown)
  • 3 Drive bar nubs
  • For use with Peak Kyan Pen or Peak Matrix Pen rotary machines
  • Manufactured by Peak
  • Price per one bag of Kyan or Matrix Pen accessories
Product Weight: 0.0038 lb

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.

Standar Body Jewelry MeasurementsJPG (300 KB)

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



Shipping & Returns

View Shipping & Return Policies