RPM Knockoffs - Supposedly 4mm?

[Coelacanth]

I bought this set of RPM knockoffs for my HPI vintage wheels. Anybody else use them? I figured they'd be a perfect fit for my 4mm Kyosho axles, which use an M4 nylon lock-nut by default.

http://cgi.ebay.ca/ws/eBayISAPI.dll?ViewItem&item=350421321350&ssPageName=STRK:MEWNX:IT

These RPM knockoffs say right on the package, "Fits all sedans w/4mm axles". The holes are too big! The knockoffs can simply slip on & off without turning, and hardly any resistance, and go on all the way to their deepest point.

Is this a defect? Maybe they should be marked "5mm axles". Anyone else have some that they could try out on any typical Kyosho axle?

Anybody want these? Put $7 in my Paypal account and I'll ship 'em to you--just want to get back what I paid for them (including shipping). They look nice, but I'm not so sure what they fit.

[lpddpd]

I have several sets already, but I think mine are specific to the DS and they fit ok for light use or else just for looks. I don't think they go on tight enough for hard runs.