The Brown & Geeson ones are ace as they're of a ballbearing locking design that takes up play as the boss wears over time. Slimmer than lifeline style ones as well if thats of need.
The other JJC one in your link is a Motacorsa item. I've currently got one in my rally car, theres a pic below for what its worth. It's a copy of the lifeline type splined bosses, i'm pleased with it. Quality isn't quite as good as the 'Lifeline' ones, but then you can buy 4 of them for the equivalent cost. Keep a little bit of grease on the splines, this helps reduce the wear when removing and refitting the wheel.
