I ordered some cones for the 8/9 extension and the short 4 for a Maver Oculus 799xs. I didn’t realise that I’d ordered the professional ones - that was my mistake. The cones arrived promptly. I can’t get them to fit and there were no instructions included with the packet. I’ve previously purchased club ones for the rest of my pole sections which I had no problem fitting, so I’ve ordered another set of those.