I bought a twin pack from CIP and I don't have any use for the 2nd belt.
The sale is for 1x black 60 inch rear lap belt with the mounting hardware.

Here's the link to the belt
http://www2.cip1.com/ProductDetails.asp?ProductCode=C45-2P-BLK-EU60PR 

Sellers Name: Warren
Price: $30 (no offers)
Pick up from Lalor Park, 2147, NSW or Bella Vista 2153 Mon-Fri during business hours

PM if you're interested