Rob, it's been so long since I bought it I can't remember how much I paid. You can get the information from the company that makes them:
Tractech, Inc.
Subsidiary of Dyneer Corporation
313-759-3850
The company used to be Detroit Automotive but changed their name in 1979. The product is called a NoSpin. They make them for many many applications including off highway heavy equipment, semis etc. They are tough.
Hope this helps.