Neobux - Doubt (please help)

neobux - What is the slide bar used in rented referrals page in neobux?
February 16, 2011 11:50pm CST
In neobux, on the rented referrals page there is a slide bar measuring numbers like 1.0 - 3.0 . What is this slide bar indicates? And for what purpose this slide bar is used?
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