The O-rings in this listing are made out of Buna-N durometer 70A which is often used in general purpose industrial applications.
All of our O-rings are sourced from reputable suppliers in the USA.
Your O-rings will be bagged and shipped via a standard first class mail envelope, as shown in the image above.
Keywords: Buna-N is another name for nitrile rubber. O-rings, orings, o'rings, O-ring, oring, o'ring