20" Accuride ballbearing drawer slides! 50$ a case, 10 pair per case
You can email with questions(or leave a post with your email). For specific details the Rockler.com or Accuride.com websites both have PDF's with all specifications.
Shipping is unfortunately expensive because they are about 21 lbs per box. Shipping is from 12833, if you would like to check the UPS website for shipping rates.
Thanks for looking, -Zac