Black Rubber / Buna O Ring – 3.9mm (inner diam.)

$0.20 inc GST

or 4 payments of $0.05 with Afterpay

Black Rubber / Buna O ring – 3.9mm inner diameter and 7mm outer diameter (1/8″ inner and 1/4″ outer diameters)

Withstands temperature up to 135C  (275F)

Fits 4mm black rubber / buna cord and is an easy slide fit for 3mm black rubber / buna cord.

Sold per ring.

As used by Melanie Muir and Donna Kato in constructing jewellery using Buna or Rubber cord.


  • Neaten a bead by placing an O Ring either side of the bead when stringing.
  • Glue with Loctite Gel Control Super Glue.


In stock

SKU: OR - 007 Categories: , , Tag: