I have been scrapping old scientific equipment and selling the recovered components.  These heavy duty ribbon cables were removed from two Vintage (1993) Eaton Powerware 6 Plus 3KVA Uninterruptible Power Supply (UPS).   The cables weigh 8 ounces each.   I can ship in a flat rate padded envelope. 

Equipment is sold "as is" with the buyer assuming all responsibility for its use.  Not really a returnable item due to high shipping cost relative to price.  Buyer would be expected to pay postage both ways in case of a return.