I have recent experience of some 'tools' on ebay, the people kind. I was selling my slx 35 extensions that go onto the 25slx (I'd bought a slx 35 and then bought the 25slx base section) that I use everyday. It was clearly explained what they were and what they fitted. This guy bought em, never heard any communication or payment for 4 days, so I emailed and eventually got a response, saying : sorry mate, I didn't realise my pole is an SLX 18!!