On 2/12/2014 5:37 AM, John Fields wrote:
Hello,

On order #320018339 I recently purchased one piece of your P/N
IB-18-PBWB05 (Size: 9 1/4) for USD 466.00.

It appears the same Benchmark ring is available on EBAY, at:

http://www.ebay.com/itm/Mens-Benchma...item4acf004719
but in a size 10 for USD 416.25.

Thank you,

John Fields

That seems to be a poor and obscenely expensive choice as a core for a
toroidal transformer or inductor. What is your application?