Got a few Brand New, never used, still got instructions attached petzl tiblocs
http://www.petzl.com/en/outdoor/multi-purpose-ascenders/tibloc handy bits of back up kit to carry or for using as part of an ultra lite SRT kit.
Ten quid (RRP = £20) plus p&p (50p second class)
I'm based in SW Sheffield if you want to save the 50p (and me some hassle) and can collect.
Profits to fund kit for a Club expedition abroad.
PM me if your interested
[tweak]link made clickable for you sir :)[/tweak]