10.1mm Rubber O-Rings (ID: 6.9mm) - choose color & quantity

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Pkg of 40 or Pkg of 240

Outer Diameter: 10.1mm  Inner Diameter: 6.9mm Thickness: 1.6mm

A/R: 4.3

For Chainmaille: Works most often with 1/4" jump rings.  This size matches the size of a 16g 1/4" jump ring exactly.  This is a fairly skinny ring for its size.  These work best in weaves where the O-Ring is folded in half or doubled.

For leather: This size fits Regaliz leather (oval leather cord).  This size is skinnier than the 10mm and 12mm orings to enable it to sit flat on flat leather and create a skinnier line of decoration when used with 10mm or 12mm leather.

Other uses: These are used as stitch markers for Knitting & Crochet and can also be used for Macrame.  EPDM Orings were developed to form a waterproof seal.  They can be used with LED lights to form a waterproof seal between the bulb and hardware.  These have also been used for body piercings that often require a stopper of this sort, tattoo equipment, paint guns, bicycle & Industrial parts.

Sizing: The ID or Inner Diameter is the size of the hole.  Generally, choose an inner diamter slightly smaller than you require.  The rubber will stretch to fit over items and form a strong seal or hold items in place.  

 The below table shows the AR average of a jump ring combined with this O-Ring size 

O-Ring Size AR Average AR
10.1mm O-Ring 4.3
Jump Rings
18g 1/4" 5.6 4.3
16g 1/4" 4.1 3.6
14g 1/4" 3.3 3.2