Great arm, Its served me well. I have carried 535B s on it to pd150 s . You can remove 2 of the cannisters for superlight weights. It has titanium springs.
When I bought it, I purchased for an extra 500 ukp a full bearing replacement set, so I would not have to rely on the manufacturer for replacements.
The reason for sale is I now have a master arm!
Asking price is 3500ukp or nearest offer. I want to buy that gekko ringlight asap so after a quick sell.